Fatal error: Uncaught PDOException: SQLSTATE[HY000]: General error: 1615 Prepared statement needs to be re-prepared in /var/www/ojs/lib/pkp/lib/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOStatement.php:115 Stack trace: #0 /var/www/ojs/lib/pkp/lib/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOStatement.php(115): PDOStatement->execute(NULL) #1 /var/www/ojs/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(370): Doctrine\DBAL\Driver\PDOStatement->execute() #2 /var/www/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 /var/www/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 /var/www/ojs/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(373): Illuminate\Databa in /var/www/ojs/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php on line 671