Fatal error: Uncaught Error: Call to undefined function sanitize_text_field() in /var/www/html1/wp-content/plugins/salon-booking-system/views/settings/tab_gcalendar.php:4 Stack trace: #0 {main} thrown in /var/www/html1/wp-content/plugins/salon-booking-system/views/settings/tab_gcalendar.php on line 4