filament-spatie-laravel-backup not working

I can't get the backup page working in Filament 3.2

artisan backup:run is working, and the Backups buttom is appearing in the menu. But when I click it, an 'internal server error' appears, before outputting anything.

"php": "^8.1",
"filament/filament": "^3.2",
"shuvroroy/filament-spatie-laravel-backup": "^2.1",
"spatie/laravel-backup": "^8.5",

Thanks already!