Hi Mary Beth,
Just did some testing, and there was a typo in the Shortcodes plugin that wasn’t retrieving the calendar name or ID correctly, and so would always insert “undefined” for the calendar argument. I’ll release an update for that in a little while. But, otherwise, it’s working correctly here with latest versions of everything.
However, if you have manually created the shortcode and are still getting that error, the only things I can think of are:
- Make sure the calendar is published, and not a draft or private
- Double check the spelling and/or calendar ID to make sure they match your calendar
If you still can’t get it working, then there may be some kind of weird theme or plugin conflict happening. If that’s the case, you can contact me privately and maybe give me temporary admin level access so I can take a quick look (don’t post those credentials here, obviously).