Fatal error: Uncaught Error: Class "phpbb\db\migration\migration" not found in /home/mboption/public_html/forums/phpbb/db/migration/data/v310/soft_delete_mod_convert2.php:21 Stack trace: #0 {main} thrown in /home/mboption/public_html/forums/phpbb/db/migration/data/v310/soft_delete_mod_convert2.php on line 21