Invalid calendar: failed to fetch calendar: 500

Hi,

Since today I’m getting repeated calendar errors in Intervals.icu:

“Invalid calendar: Failed to fetch calendar: 500”

The message appears multiple times in the calendar view.

What I’ve checked:

  • Reloaded the page
  • Logged out and back in
  • Tried a different browser
  • The error persists

My activities and syncing seem to work normally. The issue appears to be related to one of the connected calendars.

Has anyone seen this before or knows how to identify which calendar is causing the error?

Thanks!

I had a look and both of your calendars go the same site and it is failing with a 500 error. That might be temporary. You can try paste the calendar URL into a browser to see.

I noticed that you are getting weather forecasts. Intervals.icu can do that natively. I see you have a forecast setup but turned off.