iPhone problem Your response to calendar cannot be sent
Calendar invitation: your response to calendar invite cannot be sent. Over and over and over at very inconvenient times. Here is what I have tried: turned off individual calendars in settings ; turned off phone; signed out of iCloud; deleted all other calendars aps besides the phone one; turned off all the calendars inside calendars so there are no calendars connected to my iPhone; yet still getting the messages.
iPhone 13 Pro Max
iOS 17.6.1
iPhone 13 Pro Max, iOS 17