Fatal error: Uncaught Error: Class "Illuminate\Support\Collection" not found in C:\xampp\htdocs\Leave-main\vendor\maatwebsite\excel\src\Maatwebsite\Excel\Collections\ExcelCollection.php:16 Stack trace: #0 {main} thrown in C:\xampp\htdocs\Leave-main\vendor\maatwebsite\excel\src\Maatwebsite\Excel\Collections\ExcelCollection.php on line 16