Gamejolt APi GDevelop

Has anyone try this one out and get it work proberly?:

I try it and I get it show scoreboard in gamejolt, but problem is that it shows player scores wrong and it shows my registered username as a “nobody”. I think it shows other registered users, but scores are wrong.
So can someone help with this?

Edit. I think I got it now… But still all the guest players are the same and if you want to be in the scoreboard, you have to be logged in facebook, twitter or gamejolt account.