Crashing Is Fixable!
Hey Everyone!
I, too, have a new macbook and had been having issues with the app! Luckily, I was able to do a little bit of digging and figured out how to fix the issue. Apparently, the app tries to automatically sync with Calender without you having given your permission previously. This is how I fixed it! Make sure you have the app closed before trying this.
1.) Go to your Mac’s System Preferences
2.) Select Security and Privacy
3.) Go to the Privacy Tab
4.) Select Calender (On the left)
5.) Check the box next to Opus Domini Lite
Hopefully that worked for you!
JoPaulVol about Opus Domini Lite