Cannot publish articles

Software Support
1

We cannot publish articles. I receive error messag “an unexpected error occured. Reload and try again”. If I reload, I do not need to log in again. Here is what I found in error log file:
Type: PDOException
Code: HY000
Message: SQLSTATE[HY000]: General error: 1267 Illegal mix of collations (utf8_unicode_ci,IMPLICIT) and (utf8_general_ci,IMPLICIT) for operation ‘=’
File: /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/lib/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php
Line: 78
Trace: #0 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/lib/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php(78): PDO->prepare(‘SELECT\ti.*\n\t\t\tF…’, Array)
#1 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(361): Doctrine\DBAL\Driver\PDOConnection->prepare(Object(Illuminate\Database\Query\Expression))
#2 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(664): Illuminate\Database\Connection->Illuminate\Database{closure}(Object(Illuminate\Database\Query\Expression), Array)
#3 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(631): Illuminate\Database\Connection->runQueryCallback(Object(Illuminate\Database\Query\Expression), Array, Object(Closure))
#4 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(373): Illuminate\Database\Connection->run(Object(Illuminate\Database\Query\Expression), Array, Object(Closure))
#5 [internal function]: Illuminate\Database\Connection->cursor(Object(Illuminate\Database\Query\Expression), Array)
#6 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/classes/issue/IssueDAO.inc.php(559): Generator->current()
#7 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/classes/submission/Submission.inc.php(86): IssueDAO->getBySubmissionId(71)
#8 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/classes/services/PKPPublicationService.inc.php(574): Submission->_getContextLicenseFieldValue(NULL, 3, Object(Publication))
#9 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/api/v1/submissions/PKPSubmissionHandler.inc.php(786): PKP\Services\PKPPublicationService->publish(Object(Publication))
#10 [internal function]: PKPSubmissionHandler->publishPublication(Object(Slim\Http\Request), Object(APIResponse), Array)
#11 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/lib/vendor/slim/slim/Slim/Handlers/Strategies/RequestResponse.php(40): call_user_func(Array, Object(Slim\Http\Request), Object(APIResponse), Array)
#12 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/lib/vendor/slim/slim/Slim/Route.php(281): Slim\Handlers\Strategies\RequestResponse->__invoke(Array, Object(Slim\Http\Request), Object(APIResponse), Array)
#13 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(117): Slim\Route->__invoke(Object(Slim\Http\Request), Object(APIResponse))
#14 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/lib/vendor/slim/slim/Slim/Route.php(268): Slim\Route->callMiddlewareStack(Object(Slim\Http\Request), Object(APIResponse))
#15 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/lib/vendor/slim/slim/Slim/App.php(503): Slim\Route->run(Object(Slim\Http\Request), Object(APIResponse))
#16 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/classes/security/authorization/internal/ApiAuthorizationMiddleware.inc.php(77): Slim\App->__invoke(Object(Slim\Http\Request), Object(APIResponse))
#17 [internal function]: ApiAuthorizationMiddleware->__invoke(Object(Slim\Http\Request), Object(APIResponse), Object(Slim\App))
#18 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/lib/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array(Object(ApiAuthorizationMiddleware), Array)
#19 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(APIResponse), Object(Slim\App))
#20 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(70): call_user_func(Object(Slim\DeferredCallable), Object(Slim\Http\Request), Object(APIResponse), Object(Slim\App))
#21 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/classes/security/authorization/internal/ApiCsrfMiddleware.inc.php(46): Slim\App->Slim{closure}(Object(Slim\Http\Request), Object(APIResponse))
#22 [internal function]: ApiCsrfMiddleware->__invoke(Object(Slim\Http\Request), Object(APIResponse), Object(Closure))
#23 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/lib/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array(Object(ApiCsrfMiddleware), Array)
#24 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(APIResponse), Object(Closure))
#25 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(70): call_user_func(Object(Slim\DeferredCallable), Object(Slim\Http\Request), Object(APIResponse), Object(Closure))
#26 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/classes/security/authorization/internal/ApiTokenDecodingMiddleware.inc.php(121): Slim\App->Slim{closure}(Object(Slim\Http\Request), Object(APIResponse))
#27 [internal function]: ApiTokenDecodingMiddleware->__invoke(Object(Slim\Http\Request), Object(APIResponse), Object(Closure))
#28 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/lib/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array(Object(ApiTokenDecodingMiddleware), Array)
#29 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(APIResponse), Object(Closure))
#30 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(70): call_user_func(Object(Slim\DeferredCallable), Object(Slim\Http\Request), Object(APIResponse), Object(Closure))
#31 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/classes/handler/APIHandler.inc.php(68): Slim\App->Slim{closure}(Object(Slim\Http\Request), Object(APIResponse))
#32 [internal function]: APIHandler->{closure}(Object(Slim\Http\Request), Object(APIResponse), Object(Closure))
#33 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/lib/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array(Object(Closure), Array)
#34 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(APIResponse), Object(Closure))
#35 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(70): call_user_func(Object(Slim\DeferredCallable), Object(Slim\Http\Request), Object(APIResponse), Object(Closure))
#36 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/classes/handler/APIHandler.inc.php(127): Slim\App->Slim{closure}(Object(Slim\Http\Request), Object(APIResponse))
#37 [internal function]: APIHandler->{closure}(Object(Slim\Http\Request), Object(APIResponse), Object(Closure))
#38 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/lib/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array(Object(Closure), Array)
#39 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(APIResponse), Object(Closure))
#40 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(70): call_user_func(Object(Slim\DeferredCallable), Object(Slim\Http\Request), Object(APIResponse), Object(Closure))
#41 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/classes/handler/APIHandler.inc.php(132): Slim\App->Slim{closure}(Object(Slim\Http\Request), Object(APIResponse))
#42 [internal function]: APIHandler->{closure}(Object(Slim\Http\Request), Object(APIResponse), Object(Closure))
#43 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/lib/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array(Object(Closure), Array)
#44 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(APIResponse), Object(Closure))
#45 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(70): call_user_func(Object(Slim\DeferredCallable), Object(Slim\Http\Request), Object(APIResponse), Object(Closure))
#46 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(117): Slim\App->Slim{closure}(Object(Slim\Http\Request), Object(APIResponse))
#47 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/lib/vendor/slim/slim/Slim/App.php(392): Slim\App->callMiddlewareStack(Object(Slim\Http\Request), Object(APIResponse))
#48 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/classes/handler/APIHandler.inc.php(124): Slim\App->process(Object(Slim\Http\Request), Object(APIResponse))
#49 [internal function]: APIHandler->{closure}(Object(Slim\Http\Request), Object(APIResponse), Object(Closure))
#50 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/lib/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array(Object(Closure), Array)
#51 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(APIResponse), Object(Closure))
#52 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(70): call_user_func(Object(Slim\DeferredCallable), Object(Slim\Http\Request), Object(APIResponse), Object(Closure))
#53 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/classes/handler/APIHandler.inc.php(132): Slim\App->Slim{closure}(Object(Slim\Http\Request), Object(APIResponse))
#54 [internal function]: APIHandler->{closure}(Object(Slim\Http\Request), Object(APIResponse), Object(Closure))
#55 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/lib/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array(Object(Closure), Array)
#56 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(APIResponse), Object(Closure))
#57 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(70): call_user_func(Object(Slim\DeferredCallable), Object(Slim\Http\Request), Object(APIResponse), Object(Closure))
#58 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(117): Slim\App->Slim{closure}(Object(Slim\Http\Request), Object(APIResponse))
#59 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/lib/vendor/slim/slim/Slim/App.php(392): Slim\App->callMiddlewareStack(Object(Slim\Http\Request), Object(APIResponse))
#60 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/lib/vendor/slim/slim/Slim/App.php(297): Slim\App->process(Object(Slim\Http\Request), Object(APIResponse))
#61 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/classes/core/APIRouter.inc.php(115): Slim\App->run()
#62 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/classes/core/Dispatcher.inc.php(144): APIRouter->route(Object(Request))
#63 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/lib/pkp/classes/core/PKPApplication.inc.php(362): Dispatcher->dispatch(Object(Request))
#64 /home/zwfmqpxw/public_html/helenskestudije.me/ojs/index.php(68): PKPApplication->execute()
#65 {main}
View in rendered output by enabling the “displayErrorDetails” setting.

2

Hi @filipi,

Thank you for providing your error log. Could you confirm which version of OJS/OMP/OPS you’re currently using?

Kind Regards,
Patricia

3

Hi, it is the latest version of OJS.

Anyway, I managed to solve the problem - some of my databases were set to ut8_unicode_ci, so I just set them all to utf8_general_ci and now everything works fine.

4

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