Fatal error: Uncaught Error: Class 'Illuminate\Support\Fluent' not found in C:\dolibarr\www\LevEnt1\vendor\backpack\crud\src\app\Library\Widget.php:10 Stack trace: #0 {main} thrown in C:\dolibarr\www\LevEnt1\vendor\backpack\crud\src\app\Library\Widget.php on line 10