Hi, thank you for bringing this to our attention! we just published a new version that should fix this issue.
Ok that's weird I'm having the exact same issue with the new version.
[The application “Boreal_Tales_5_21_20 _MAC.app” can’t be opened.]
Hmm, Ok. I'll look into this some more, might be the version of Unity I'm building it on. I will get back to you on this, sorry for the bug