Commit for this lesson: https://github.com/LaravelDaily/Laravel-Filament-Admin-Course/commit/8818b99a2e5912514e6455644b567828fa7f1e38
Method App\Filament\Resources\VoucherResource\Pages\EditVoucher::notify does not exist.
thx solved Notification::make() ->title('Error') ->body('You cannot edit a voucher') ->danger() ->send();