Player not found issue

[Gavin12124]

Whenever i try to use any of the scripts for example, the unlock pets script, it gives me an error saying player not found. I have tried entering different worlds, playing offline, going to areas where nobody is, clearing cookies, and many other things and nothing has worked. How do i fix this issue?

[helllllllllollllllllllll]

(Please excuse my username, I made it when I was 8) I am having the same issue.