Fatal error: Uncaught Error: Interface "Laravel\SerializableClosure\Contracts\Serializable" not found in /srv/www/sites/public/starter-cms/vendor/laravel/serializable-closure/src/Serializers/Native.php:15 Stack trace: #0 {main} thrown in /srv/www/sites/public/starter-cms/vendor/laravel/serializable-closure/src/Serializers/Native.php on line 15