Answer
Completed
Sorry to hear about your duplicate calendar events. It sounds like you may have subscribed to multiple Hebcal calendars in Google Calendar.
You can follow these instructions to unsubscribe/delete the extra calendars from your Google account
https://www.hebcal.com/home/4383/google-calendar-delete-hebcal
Customer support service by UserEcho
Sorry to hear about your duplicate calendar events. It sounds like you may have subscribed to multiple Hebcal calendars in Google Calendar.
You can follow these instructions to unsubscribe/delete the extra calendars from your Google account
https://www.hebcal.com/home/4383/google-calendar-delete-hebcal