Can't sync staff calendar when signed in as staff member

[Valentina R]

When I try to link a gCal account to a staff member loggedin as admin, I can do it without a problem. But if I log in as a staff member, I get 'Permission denied'.

Reported here: https://bizzthemes.com/forums/topic/google-calendar-sync-access-denied/

And here:https://bizzthemes.com/forums/topic/permission-denied-when-trying-to-connect-google-calendar/

[BookingWP]

Fixed with 3.8.8