Fatal error: Uncaught Error: Class "Illuminate\Cache\Lock" not found in /home/slsiluser/public_html/service-portal-mobile-responsive/vendor/laravel/framework/src/Illuminate/Cache/MemcachedLock.php:5 Stack trace: #0 {main} thrown in /home/slsiluser/public_html/service-portal-mobile-responsive/vendor/laravel/framework/src/Illuminate/Cache/MemcachedLock.php on line 5