Fatal error: Uncaught Error: Class "Illuminate\Support\ServiceProvider" not found in /home/bimmertest/BookStack/vendor/itsgoingd/clockwork/Clockwork/Support/Laravel/ClockworkServiceProvider.php:22 Stack trace: #0 {main} thrown in /home/bimmertest/BookStack/vendor/itsgoingd/clockwork/Clockwork/Support/Laravel/ClockworkServiceProvider.php on line 22