I have a world in which there are many models. When I removed the source of object model (a file) but the object model in the world that still exists and when I load the world in World Editor throws an error and closes. I can not in any way to open the world and the file does not exists...

what file did you remove? a skeleton? (.skel)
if yes, then a fix will be in the next engine version

(in the meantime, you can restore the file, or copy other file as the missing file name, load world, remove the object, save world, delete the file)

Yes, I removed model *.mesh and skeleton *.skel .

Thanks for the tip! Now it is ok.