Level editor problem =/

[oo_jazz_oo]

I cant open my level editor. It gives me errors (attached).
I've searched the forums and found This.
Which is just like my problem, except...theres no solution. -_-

I've uninstalled the editor, redownloaded, it, deleted it manually, etc. Nothing will fix it.

The last time this happened to me, I had to reinstall all of graal. x.x
And I dont really wanna do that...