Fatal error: Uncaught Error: Class 'yii\bootstrap\ActiveForm' not found in /opt/lampp/htdocs/squidv2-stage/vendor/lajax/yii2-translate-manager/views/language/dialog.php:17 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/squidv2-stage/vendor/lajax/yii2-translate-manager/views/language/dialog.php on line 17