Fatal error: Uncaught Error: Class 'craft\db\Migration' not found in /home/mpolsk5/public_html/seocomo/craft/vendor/craftcms/cms/src/migrations/m191204_085100_pack_savable_component_settings.php:16 Stack trace: #0 {main} thrown in /home/mpolsk5/public_html/seocomo/craft/vendor/craftcms/cms/src/migrations/m191204_085100_pack_savable_component_settings.php on line 16