Fatal error: Uncaught Error: Class "Illuminate\Database\Eloquent\Relations\BelongsToMany" not found in /var/www/develop/www/php/vendor/illuminate/database/Eloquent/Relations/MorphToMany.php:9 Stack trace: #0 {main} thrown in /var/www/develop/www/php/vendor/illuminate/database/Eloquent/Relations/MorphToMany.php on line 9