Fatal error: Uncaught Error: Class "Illuminate\Database\Eloquent\Relations\Relation" not found in /home/kartulirest/public_html/xyz.kartulirest.de/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Relations/HasOneOrMany.php:11 Stack trace: #0 {main} thrown in /home/kartulirest/public_html/xyz.kartulirest.de/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Relations/HasOneOrMany.php on line 11