Fatal error: Uncaught Error: Class "yii\db\Migration" not found in /var/www/html/prod/vendor/webvimark/multilanguage/migrations/m000000_000000_multilanguage_install.php:4 Stack trace: #0 {main} thrown in /var/www/html/prod/vendor/webvimark/multilanguage/migrations/m000000_000000_multilanguage_install.php on line 4