Appointments+ version 1.7.1 gives Fatal Error; WP Version 4.42; BeTheme

Hi Folks,
Appointments+ gives fatal error:
Fatal error: Call to undefined method Appointments_Admin::save_profile() in .../wp-content/plugins/appointments/includes/class_app_buddypress.php on line 71
When trying to save schedule change via user profile, appointments->settings.
Changes seem to be ok from the Admin (backend) screen. I can't have all the 'providers' going into the back-end now can I ? :wink:
I have enabled support access and would sure appreciate someone having a look.
Thanks much. This is version 1.7.1