Fatal error: Uncaught Error: Class "SLB_API_Mobile\Helper\UserRoleHelper" not found in /var/www/html1/wp-content/plugins/salon-booking-system/views/mail/_customer_info.php:4 Stack trace: #0 {main} thrown in /var/www/html1/wp-content/plugins/salon-booking-system/views/mail/_customer_info.php on line 4