Fatal error: Uncaught Error: Class "yii\base\Behavior" not found in /home/telefonai/public_html/test.telefonai.eu/storage/runtime/compiled_classes/CustomFieldBehavior_3@wyobyadnzy.php:19 Stack trace: #0 {main} thrown in /home/telefonai/public_html/test.telefonai.eu/storage/runtime/compiled_classes/CustomFieldBehavior_3@wyobyadnzy.php on line 19