Hi pathakabhishek,
I am seeing the same fatal error when I go to Appoint Calendar->Appointments:
Fatal error: Uncaught Error: Call to undefined function mysql_connect() in /home/virtu180/public_html/wp-content/plugins/appointment-calendar/menu-pages/manage-appointments.php:26 Stack trace: #0 /home/virtu180/public_html/wp-content/plugins/appointment-calendar/appointment-calendar.php(180): require_once() #1 /home/virtu180/public_html/wp-includes/plugin.php(525): display_manage_appointment_page(”) #2 /home/virtu180/public_html/wp-admin/admin.php(236): do_action(‘appointment-cal…’) #3 {main} thrown in /home/virtu180/public_html/wp-content/plugins/appointment-calendar/menu-pages/manage-appointments.php on line 26
