Can't delete a ward calendar event

I have tried for a week to delete a ward calendar event on lds.org. After selecting delete the following error message is shown "Sorry, data is temproarily not available for this application. Please try again later." In the attached picture I was trying to delete "1p Fast Sunday" and it shows the error message.

You might try the right-click suggestion in this post. Failing that, you might read other posts in that very long thread.