Error Name Already in use...

(I am french sorry for my english)
Hi, I need help please..
I have use a script for change starting level
And now i have the error "Name Already In use"

I have test that script : [Only registered and activated users can see links. Click Here To Register...]

And the error stay...

Please help me .. :(

When you edited the starting level, did you edit starting money, too?
Because if you wrote something more than 4b you will get "Name Already In Use".

Thanks i have no problem now :)