I am trying to upgrade from ojs-2.4.8-5 to ojs-3.2.1-4 and while doing that i am facing this error which has caused my upgradation to an indefinite period. so please help me resolve this issue by providing me solution for the error:
PHP Fatal error: Uncaught Exception: DB Error: Table ‘ojs3.article_files’ doesn’t exist Query: SELECT file_id, revision, file_name FROM article_files WHERE file_id = ? in D:\wamp64\www\ojs248\lib\pkp\classes\db\DAO.inc.php:703
Stack trace:
#0 D:\wamp64\www\ojs248\lib\pkp\classes\db\DAO.inc.php(103): DAO->handleError(Object(ADODB_mysqli), ‘SELECT file_id,…’)
#1 D:\wamp64\www\ojs248\classes\install\Upgrade.inc.php(88): DAO->retrieve(‘SELECT file_id,…’, Array)
#2 D:\wamp64\www\ojs248\lib\pkp\classes\install\Installer.inc.php(417): Upgrade->removeReviewEntries(Object(Upgrade), Array)
#3 D:\wamp64\www\ojs248\lib\pkp\classes\install\Installer.inc.php(263): Installer->executeAction(Array)
#4 D:\wamp64\www\ojs248\lib\pkp\classes\install\Installer.inc.php(186): Installer->executeInstaller()
#5 D:\wamp64\www\ojs248\lib\pkp\classes\install\form\UpgradeForm.inc.php(42): Installer->execute()
#6 D:\wamp64\www\ojs248\lib\pkp\pages\install\InstallHandler.inc.php(106): UpgradeForm->execute()
#7 D:\wamp64\www\ojs248\lib\pkp\classes\core\PK in D:\wamp64\www\ojs248\lib\pkp\classes\db\DAO.inc.php on line 703
This error has caused my page the following error
This page isn’t working
localhost is currently unable to handle this request.
HTTP ERROR 500