Warning: Undefined variable $booking in /var/www/html1/wp-content/plugins/salon-booking-system/views/mail/feedback.php on line 7

Fatal error: Uncaught Error: Call to a member function getCustomer() on null in /var/www/html1/wp-content/plugins/salon-booking-system/views/mail/feedback.php:7 Stack trace: #0 {main} thrown in /var/www/html1/wp-content/plugins/salon-booking-system/views/mail/feedback.php on line 7