Crossref depositing data

Hello dear friends! recently we have received ability to deposit data to crossref.

DOI numbers where assighned. but when i goes to section “articles” and tryied to download\check status\download xml\mark active i receive next error:

No objects selected.

Stack Trace:

File: /web/sites/uars4/classes/plugins/DOIPubIdExportPlugin.inc.php line 31
Function: PubObjectsExportPlugin->display(Array(1), Object(Request))

File: /web/sites/uars4/lib/pkp/pages/management/PKPToolsHandler.inc.php line 98
Function: DOIPubIdExportPlugin->display(Array(1), Object(Request))

File: (unknown) line (unknown)
Function: PKPToolsHandler->importexport(Array(3), Object(Request))

File: /web/sites/uars4/lib/pkp/classes/core/PKPRouter.inc.php line 372
Function: call_user_func(Array(2), Array(3), Object(Request))

File: /web/sites/uars4/lib/pkp/classes/core/PKPPageRouter.inc.php line 233
Function: PKPRouter->_authorizeInitializeAndCallRequest(Array(2), Object(Request), Array(3), False)

File: /web/sites/uars4/lib/pkp/classes/core/Dispatcher.inc.php line 134
Function: PKPPageRouter->route(Object(Request))

File: /web/sites/uars4/lib/pkp/classes/core/PKPApplication.inc.php line 247
Function: Dispatcher->dispatch(Object(Request))

File: /web/sites/uars4/index.php line 68
Function: PKPApplication->execute()

in apache\php logs no errors. only in access log:

192.168.1.105 - - [30/Aug/2018:15:05:59 +0300] “POST /index.php/uars/management/importexport/plugin/CrossRefExportPlugin/exportSubmissions HTTP/1.1” 200 1108 “https://uars.info/index.php/uars/management/importexport/plugin/CrossRefExportPlugin” “Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36”
192.168.1.105 - - [30/Aug/2018:15:06:20 +0300] “-” 408 137 “-” “-”
192.168.1.105 - - [30/Aug/2018:15:06:54 +0300] “GET /index.php/uars/management/importexport/plugin/CrossRefExportPlugin HTTP/1.1” 200 5407 “https://uars.info/index.php/uars/management/importexport/plugin/CrossRefExportPlugin” “Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36”
192.168.1.105 - - [30/Aug/2018:15:06:55 +0300] “GET /index.php/uars/$$$call$$$/page/page/user-nav-backend?=1535630819217 HTTP/1.1" 200 1508 “https://uars.info/index.php/uars/management/importexport/plugin/CrossRefExportPlugin” “Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36”
192.168.1.105 - - [30/Aug/2018:15:06:56 +0300] "GET /index.php/uars/$$$call$$$/page/page/tasks?
=1535630819220 HTTP/1.1” 200 1073 “https://uars.info/index.php/uars/management/importexport/plugin/CrossRefExportPlugin” “Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36”
192.168.1.105 - - [30/Aug/2018:15:06:56 +0300] “GET /index.php/uars/$$$call$$$/grid/notifications/task-notifications-grid/fetch-grid?=1535630819221 HTTP/1.1" 200 1746 “https://uars.info/index.php/uars/management/importexport/plugin/CrossRefExportPlugin” “Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36”
192.168.1.105 - - [30/Aug/2018:15:06:55 +0300] "GET /index.php/uars/$$$call$$$/grid/settings/plugins/settings-plugin-grid/manage?plugin=CrossRefExportPlugin&category=importexport&verb=index&
=1535630819218 HTTP/1.1” 200 2556 “https://uars.info/index.php/uars/management/importexport/plugin/CrossRefExportPlugin” “Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36”
192.168.1.105 - - [30/Aug/2018:15:06:56 +0300] “POST /index.php/uars/management/importexport/plugin/CrossRefExportPlugin/exportSubmissions HTTP/1.1” 200 970 “https://uars.info/index.php/uars/management/importexport/plugin/CrossRefExportPlugin” “Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36”

At the article page I got “loading” message and nothing happend

i stuck. what should i look for?

version of OJS: 3.1.1.2 with custom modification of multilanguage author names

Folders chmod 755. Files chmod 644.
Server envirment: debian8/apache2.4.10/php5.6.37S80830-15283079

i think that i found problem:

after moving to localhost and using “multilanguage author name support” from this topic (Translation of the author's name - #50 by vale) i have found 2 errors:

[Thu Aug 30 21:08:37.925640 2018] [:error] [pid 14308:tid 2000] [client 127.0.0.1:63280] PHP Notice: Array to string conversion in D:\xampp\htdocs\lib\pkp\classes\i18n\LocaleFile.inc.php on line 102, referer: http://uars.ua/index.php/uars/management/importexport/plugin/CrossRefExportPlugin

[Thu Aug 30 21:08:37.960638 2018] [:error] [pid 14308:tid 2000] [client 127.0.0.1:63280] PHP Notice: Array to string conversion in D:\xampp\htdocs\controllers\grid\submissions\ExportPublishedSubmissionsListGridCellProvider.inc.php on line 53, referer: http://uars.ua/index.php/uars/management/importexport/plugin/CrossRefExportPlugin

so. i think problem is in this string: (ExportPublishedSubmissionsListGridCellProvider.inc.php on line 53)

			$title = $authorsInTitle . '; ' . $title;

But how to fix this, i have no idea.

@litvinovg thank’s for fix.

for multilanguage journals use this fix.

Still looking ability to choose language for data depositing.

what is this???