Random error: certificate ui issued by ui error not trused
I somtimes get this random error what does it mean how to fix it
iPhone 15, iOS 17
Question marked as
Do you have an app named ui, or do you visit a website with that name?
You might have been tricked into installing a rogue calendar. In the future beware of "free" offers
See this Apple support link→Delete spam calendars and events on iPhone - Apple Support
or watch this companion video: