Fatal error: Uncaught PDOException: SQLSTATE[42S22]: Column not found: 1054 Unknown column 'context_id' in 'on clause' in /home/purc9571/public_html/jurnal.purnagraha.ac.id/lib/pkp/lib/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php:78 Stack trace: #0 /home/purc9571/public_html/jurnal.purnagraha.ac.id/lib/pkp/lib/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php(78): PDO->prepare('SELECT v.*\n\t\t\tF...', Array) #1 /home/purc9571/public_html/jurnal.purnagraha.ac.id/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(361): Doctrine\DBAL\Driver\PDOConnection->prepare(Object(Illuminate\Database\Query\Expression)) #2 /home/purc9571/public_html/jurnal.purnagraha.ac.id/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/purc9571/public_html/jurnal.purnagraha.ac.id/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database in /home/purc9571/public_html/jurnal.purnagraha.ac.id/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php on line 671