Fatal error: Uncaught Error: Interface "Illuminate\Contracts\Concurrency\Driver" not found in /home/wizilen/www/vendor/laravel/framework/src/Illuminate/Concurrency/ForkDriver.php:13 Stack trace: #0 {main} thrown in /home/wizilen/www/vendor/laravel/framework/src/Illuminate/Concurrency/ForkDriver.php on line 13