Submission - error 500

[Giulio_Anesa]

Hello forum,
I’m having an issue in the SUBMISSION section…
OJS 2.4.7.1

When an author click the NEW SUBMISSION button, he goes to the STEP 1 section…
He choose the SECTION and flag all the SUBMISSION CHECKLIST and COPYRIGHT NOTICE…
But when he click SAVE AND CONTINUE there is a 500 error and he cannot proceed to STEP 2.
The strange thing is that when I (administrator) go to the SITE ADMINISTRATOR section, i can see the new submission active (but incomplete).

What could it be?
I recently migrate the website and the DB to another server, but the domain name is the same.

Thank you!

[ctgraham]

If you look in your webserver error log, you should find the details on the 500 error.

When I click some button or follow some link, I'm left with a blank page. What do I do?

Check your webserver error log Usually, this indicates that a PHP error has occurred and the message has been sent to your web server or system log file. Check there – e.g. /var/log/apache/error.log, although the exact location will depend on your server configuration – for further details. Check your file permissions If you haven’t installed OJS yet, then the most likely cause is a problem with file permissions in your cache/ or cache/t_compile directories. See docs/README for information on…

Those details will help us know what is causing the error.

[Giulio_Anesa]

thank you ctgraham…
the error_log doesn’t record anything when I have this message

I only see this error everyday, 20 times a day:

[13-Jun-2017 08:49:59 UTC] ojs2 has produced an error
Message: WARNING: require_once(plugins/metadata/mods34/filter/Mods34SchemaArticleAdapter.inc.php): failed to open stream: No such file or directory
In file: /home/qs2b8tn6/public_html/lib/pkp/includes/functions.inc.php
At line: 32
Stacktrace:
Server info:
OS: Linux
PHP Version: 5.6.30
Apache Version: N/A
DB Driver: mysql
DB server version: 5.6.35-cll-lve

…and at line 32 of my functions.inc there is:
require_once($filePath);

how could I try to solve the problem?

[ctgraham]

The stock version of OJS 2.4.7-1 should have that file.

Do you have any intentional changes to the OJS codebase? If not, you might consider comparing your install against (or just reloading) the stock version of the 2.4.7-1.

[Giulio_Anesa]

Thank you so much!!! problem solved… the file was missing