I had it but i tried to uncheck it and repost but got the exact same error 🙁
Also tried unchecking “image(s) to use” but again same error.

Hello, i am testing your beta version too (downloaded and installed today in a dev website).
It solves the html/css issues i have with the calendar in sidebar with 4.2 release, good job!
I ask for a feature of possible: at the moment, the only way to see event’s details is by CLICKING on the date within the calendar, could you add an option to show event’s details on ROLLOVER?
Thanks a lot!