Runtime Error occurred in <App.Open>. Email this info to email@example.com please.
This is the same error from yesterday on a surface pro and I just had to delete the data file defaults.rp8 and force them to start over. When the app runs if defaults.rp8 is not where it is supposed to be the app will create a new one from scratch.
He would have to search his “all mac files” to find the defaults.rp8 and rename it or drag it to trash.