timayates

No it didn’t resolve the problem.

Not sure what you mean. I created the calendar, pasted the shortcode to display on the front page. It’s there, but it won’t allow my or anyone to input any data?

I’m using your plugin in the DIVI theme by Elegant Themes. https://www.elegantthemes.com/gallery/divi/ and WordPress just auto upgraded to 4.4.2

You can see it at https://www.timyates.com/divi