Fatal error: Uncaught Error: Class "Illuminate\Database\Eloquent\Collection" not found in /home/llbmvgik/public_html/vendor/staudenmeir/laravel-adjacency-list/src/Eloquent/Collection.php:13 Stack trace: #0 {main} thrown in /home/llbmvgik/public_html/vendor/staudenmeir/laravel-adjacency-list/src/Eloquent/Collection.php on line 13