Fatal error: Uncaught Error: Class 'craft\db\MigrationManager' not found in /home/mpolsk5/public_html/seocomo/craft/vendor/craftcms/cms/src/config/app.php:165 Stack trace: #0 {main} thrown in /home/mpolsk5/public_html/seocomo/craft/vendor/craftcms/cms/src/config/app.php on line 165