Fatal error: Uncaught Error: Class "phpbb\db\migration\migration" not found in /usr/local/www/dctalk/data/forum/ext/gfksx/ThanksForPosts/migrations/v_1_3_1.php:13 Stack trace: #0 {main} thrown in /usr/local/www/dctalk/data/forum/ext/gfksx/ThanksForPosts/migrations/v_1_3_1.php on line 13