My pleasure–happy to help!
I’ll go ahead and close this thread, but it might be worth reaching out to the theme developer before ditching the theme altogether. It looks like theme uses Javascript for loading pages and my bet is that the conflict is somewhere near there. If the theme developer is able to isolate the error and provide a way to perhaps dequeue the script for calendar pages, then you may be able to keep the theme and the plugin together–win, win. 🙂
And, of course, feel free to hit us with a new thread if any other questions–including any from the theme developer–come up and we’d be happy to help as best we can.
Cheers and thanks again for reaching out!
Geoff