Fatal error: Uncaught Error: Class "Illuminate\Database\Eloquent\Relations\BelongsTo" not found in /var/www/dev2/data/www/dev2.crosshub.ru/fitness/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Relations/MorphTo.php:17 Stack trace: #0 {main} thrown in /var/www/dev2/data/www/dev2.crosshub.ru/fitness/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Relations/MorphTo.php on line 17