Jenkins level 2 - 3 Jenkins Workspaces why is the creditials failing

Why when I want to make a user for pulling the git server , it fails

here the challenge : https://8080-port-tulqjeham4wxlrlo.labs.kodekloud.com/job/app-job/

and I make a user with the user choice but no luck

This is a good issue to search this forum for similar issues (“Jenkins Workspaces”) and see what you find. I think you’ll get some traction by doing that.