Still working November 12'th 2024. Thank you!

User commented originally to open
"C:\Users\YourUsername\AppData\Local\GOG.com\Galaxy\plugins\installed\" then go into the uplay plugin folder
Look for and open "consts.py"
Lines 15-16 change them to the commented ones above from the quote and hit connect again then should work.
No credits to me just a re-comment for those that came in late like me to avoid having to go page to page.

Thanks for those that helped with the quick fix listed above.

For those that don't want to open folders and edit files, you are never alone lol so I made a lazy fix exe that will do it for you. :) enjoy.

Press Here (Github) <--- Grab the release, unzip, open, click, done.

REMOVED THIS SAW NO DELETE COMMENT OPTION LOL.

Paste %localappdata%\GOG.com\Galaxy\plugins\installed\ in the address bar for faster access