https://bugs.winehq.org/show_bug.cgi?id=56201
--- Comment #2 from Warner wmmolema@outlook.com --- Yes, that is the correct software. (https://swiss-manager.at/download.aspx?lan=1)
I have a licensed copy.
I do not use the demo mode.
The application worked on an earlier version of Linux Mint with Wine.
When I upgraded Linux Mint it stopped working providing the error.
I have since upgraded again hoping it would resolve the issue, but it has not.