Fatal error: Uncaught Error: Interface "Illuminate\Console\Scheduling\EventMutex" not found in /home/appdemo/public_html/samena-mailer/vendor/laravel/framework/src/Illuminate/Console/Scheduling/CacheEventMutex.php:9 Stack trace: #0 {main} thrown in /home/appdemo/public_html/samena-mailer/vendor/laravel/framework/src/Illuminate/Console/Scheduling/CacheEventMutex.php on line 9