Hello PKP,
I installed OJS 3.1.1.4 wherein I created a journal and set up purchase article option and payment with paypal. But when a user logs in to the journal and clicks on the galley to purchase it, a blank page shows up instead of being directed to the paypal field. I would appreciate your help in solving the problem as it is seen in error log:
15-Nov-2018 02:07:31 UTC] PHP Strict Standards: Declaration of SubmissionFileDAO::fromRow() should be compatible with PKPSubmissionFileDAO::fromRow($row, $fileImplementation) in /home/nduwiman/public_html/classes/article/SubmissionFileDAO.inc.php on line 23
[15-Nov-2018 02:07:31 UTC] PHP Strict Standards: Declaration of UserSettingsDAO::getSetting() should be compatible with & PKPUserSettingsDAO::getSetting($userId, $name, $assocType = NULL, $assocId = NULL) in /home/nduwiman/public_html/classes/user/UserSettingsDAO.inc.php on line 19
[15-Nov-2018 02:07:31 UTC] PHP Strict Standards: Declaration of UserSettingsDAO::getUsersBySetting() should be compatible with & PKPUserSettingsDAO::getUsersBySetting($name, $value, $type = NULL, $assocType = NULL, $assocId = NULL) in /home/nduwiman/public_html/classes/user/UserSettingsDAO.inc.php on line 19
[15-Nov-2018 02:07:31 UTC] PHP Strict Standards: Declaration of UserSettingsDAO::updateSetting() should be compatible with PKPUserSettingsDAO::updateSetting($userId, $name, $value, $type = NULL, $assocType = NULL, $assocId = NULL) in /home/nduwiman/public_html/classes/user/UserSettingsDAO.inc.php on line 19
[15-Nov-2018 02:07:31 UTC] PHP Strict Standards: Declaration of UserSettingsDAO::deleteSetting() should be compatible with PKPUserSettingsDAO::deleteSetting($userId, $name, $assocType = NULL, $assocId = NULL) in /home/nduwiman/public_html/classes/user/UserSettingsDAO.inc.php on line 19
[15-Nov-2018 02:07:31 UTC] PHP Fatal error: Interface ‘Symfony\Component\EventDispatcher\EventSubscriberInterface’ not found in /home/nduwiman/public_html/plugins/paymethod/paypal/vendor/guzzle/guzzle/src/Guzzle/Http/RedirectPlugin.php on line 20