Are you able to update the app for MacOS? Update Monterey says it's damaged so that it cannot be opened.
Sorry, I know I'm late:
It will most probably be the old and well known Apple sickness of prohibiting anything not highly expensive sold via their app shops /stores where you have to annually pay Apple for providing the platform you can use to offer your software, something small coders could never afford as long as they not were born as rich kids or have won the lottery. :-(
BUT THERE IS A SOLUTION:
here the same with other words and pics:Regards
Michelist