Fatal error: Uncaught Error: Class 'Illuminate\Support\ServiceProvider' not found in /mnt/volume_lon1_01/backend/admin/vendor/laracasts/flash/src/Laracasts/Flash/FlashServiceProvider.php:7 Stack trace: #0 {main} thrown in /mnt/volume_lon1_01/backend/admin/vendor/laracasts/flash/src/Laracasts/Flash/FlashServiceProvider.php on line 7