What are possible reasons for the " warning: could not find UI helper 'GitHub.UI' " with Git under windows

Question

My Git version is 2.39.0 (the recent one) under windows 10. I got the

warning: could not find UI helper 'GitHub.UI' when trying to 
clone a rep on github. 

1. What are possible causes of this error?
2. And how to fix it?

Reinstalling Git, rebooting. Still the same error.