HELP!!! A GREEN CHECKERED BOX APPEARED AT MY WorldEdit!!

HELP!!! A GREEN CHECKERED BOX APPEARED AT MY WorldEdit!!

Help!! I'm trying to import models from WC3search to WorldEditor but after i reset the WorldEditor (exit and run again) i placed the model and a green checkered box appeared!!! Help me i am desperate!!!

Awww I didn't read the author so I was hoping for another Wulfy noob mocker.

But on topic, there are about a billion topics on this. Try looking for five minutes on this site.
--donut3.5--