Fatal error: Uncaught Error: Class "yii\base\Event" not found in /home/cooperativamaism/public_html/staging/vendor/verbb/cloner/src/events/RegisterClonerGroupEvent.php:6 Stack trace: #0 {main} thrown in /home/cooperativamaism/public_html/staging/vendor/verbb/cloner/src/events/RegisterClonerGroupEvent.php on line 6