Hi I'm encountering this issue with Groupy failing to authenticate with Steam.
"Failed to authenticate Groupy with Steam. Please ensure that Steam is logged in with a working internet connection and try again. Result Code -205."
I've already tried the following solutions:
1) I've renamed my computer name to make sure it only has Western characters as recommend. I renamed my Device Name to "HomePC"
https://forums.stardock.com/486311/accounts-and-activation-support-faq#activationerror
2) I have tried using the Purge tool and reinstalling from Steam and still have the same issue
https://forums.stardock.com/488142/groupy-support-faq#reinstalling
3) I have tried activating Groupy on completely different device (which was successfully activated previously) and am now receiving the same error on the different device.