OJS 3.3.0.17 Cant Access Submission page

On our site we can’t access submission page, every thing else work but submission page is loaded blank
We have this problem since upgrade to 3.3.0.8, but didn’t resolve it. Now we have upgraded to 3.3.0.17 and it is still there. As this instance of OJS was for presentation of journal only it wasn’t a big problem, but now editors want to use it for editing and this is now big problem.

This is a link to older post: https://forum.pkp.sfu.ca/t/ojs-3-3-0-8-cant-access-submission-page/72223/3

On our server (dedicated to OJS) we have 15 stand alone instances installed and we have this problem only with this one. Server configuration is Ubuntu server 20.04, php 7.4.33, FastCGI, Apache, mysql 5.5.5-10.3.39-MariaDB-0ubuntu0.20.04.2

I’m think that it have something to do with language, but i don’t know where to look any more.

This is error log:

Notice: Deprecated call without request object. in /var/www/clients/client1/web1/web/lib/pkp/classes/template/PKPTemplateManager.inc.php on line 1294

Notice: Deprecated call without request object. in /var/www/clients/client1/web1/web/lib/pkp/classes/template/PKPTemplateManager.inc.php on line 1294

Notice: Deprecated call without request object. in /var/www/clients/client1/web1/web/lib/pkp/classes/template/PKPTemplateManager.inc.php on line 1294

Notice: Deprecated call without request object. in /var/www/clients/client1/web1/web/lib/pkp/classes/template/PKPTemplateManager.inc.php on line 1294

Notice: Deprecated call without request object. in /var/www/clients/client1/web1/web/lib/pkp/classes/template/PKPTemplateManager.inc.php on line 1294

Notice: Deprecated call to Smarty2 function get_template_vars in /var/www/clients/client1/web1/web/lib/pkp/classes/template/PKPTemplateManager.inc.php on line 2355

Notice: Deprecated call to Smarty2 function get_template_vars in /var/www/clients/client1/web1/web/lib/pkp/classes/template/PKPTemplateManager.inc.php on line 2355

Notice: Deprecated call without request object. in /var/www/clients/client1/web1/web/lib/pkp/classes/template/PKPTemplateManager.inc.php on line 1294

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

...

Notice: Deprecated call without request object. in /var/www/clients/client1/web1/web/lib/pkp/classes/template/PKPTemplateManager.inc.php on line 1294

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

...

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Notice: Deprecated call without request object. in /var/www/clients/client1/web1/web/lib/pkp/classes/template/PKPTemplateManager.inc.php on line 1294

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

...
Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

...

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

...

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Notice: Deprecated call without request object. in /var/www/clients/client1/web1/web/lib/pkp/classes/template/PKPTemplateManager.inc.php on line 1294

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

...
Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Notice: Deprecated call without request object. in /var/www/clients/client1/web1/web/lib/pkp/classes/template/PKPTemplateManager.inc.php on line 1294

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

...

Notice: Deprecated call without request object. in /var/www/clients/client1/web1/web/lib/pkp/classes/template/PKPTemplateManager.inc.php on line 1294

Warning: Illegal string offset 'sr_RS@latin' in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/services/PKPSchemaService.inc.php on line 579

...

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

...

Warning: Illegal string offset 'en_US' in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Warning: Cannot assign an empty string to a string offset in /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php on line 133

Notice: Deprecated call without request object. in /var/www/clients/client1/web1/web/lib/pkp/classes/template/PKPTemplateManager.inc.php on line 1294

Notice: Deprecated call without request object. in /var/www/clients/client1/web1/web/lib/pkp/classes/template/PKPTemplateManager.inc.php on line 1294

Notice: Deprecated call without request object. in /var/www/clients/client1/web1/web/lib/pkp/classes/template/PKPTemplateManager.inc.php on line 1294

Warning: Cannot modify header information - headers already sent by (output started at /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php:133) in /var/www/clients/client1/web1/web/lib/pkp/classes/template/PKPTemplateManager.inc.php on line 1235

Warning: Cannot modify header information - headers already sent by (output started at /var/www/clients/client1/web1/web/lib/pkp/classes/core/DataObject.inc.php:133) in /var/www/clients/client1/web1/web/lib/pkp/classes/template/PKPTemplateManager.inc.php on line 1236

This is debug from chrome:

build.js?v=3.3.0.17:213 TypeError: Cannot read properties of undefined (reading 'itemsMax')
    at xr.eval (eval at Ru (build.js?v=3.3.0.17:213:93306), <anonymous>:3:3808)
    at e._render (build.js?v=3.3.0.17:213:23849)
    at xr.r (build.js?v=3.3.0.17:213:27940)
    at ir.get (build.js?v=3.3.0.17:213:30800)
    at new ir (build.js?v=3.3.0.17:213:30718)
    at In (build.js?v=3.3.0.17:213:27954)
    at xr.$mount (build.js?v=3.3.0.17:213:71242)
    at xr.$mount (build.js?v=3.3.0.17:213:95170)
    at e._init (build.js?v=3.3.0.17:213:34659)
    at new xr (build.js?v=3.3.0.17:213:35350)
ot @ build.js?v=3.3.0.17:213
at @ build.js?v=3.3.0.17:213
rt @ build.js?v=3.3.0.17:213
e._render @ build.js?v=3.3.0.17:213
r @ build.js?v=3.3.0.17:213
ir.get @ build.js?v=3.3.0.17:213
ir @ build.js?v=3.3.0.17:213
In @ build.js?v=3.3.0.17:213
xr.$mount @ build.js?v=3.3.0.17:213
xr.$mount @ build.js?v=3.3.0.17:213
e._init @ build.js?v=3.3.0.17:213
xr @ build.js?v=3.3.0.17:213
init @ build.js?v=3.3.0.17:157
(anonymous) @ submissions:2900
contentScript.js:1 P Received SHOW_SIDEBAR_APP action in content script

We have the same problem :frowning: same OJS version.