Fatal error: Uncaught Error: Class "Pusher\PusherException" not found in /home/zionerpc/quarry.zionerp.co.ke/vendor/pusher/pusher-php-server/src/ApiErrorException.php:10 Stack trace: #0 {main} thrown in /home/zionerpc/quarry.zionerp.co.ke/vendor/pusher/pusher-php-server/src/ApiErrorException.php on line 10