HaloMods "Classic" Read-only Archive

I got an error message in sapian but i thing it applys to 3dsmax but i dont know what it means.please help.
It said"error:degenerate tirangle [or triangle with bad uvs] 9see bule in error geometry)
Can anyone explain this?

uvs = uvw = redoing your uvw correct

I didnt use a uvw map.Just made the skybox...Putin a heightmap...And put my surface pic over top. I know that there is a wrl file but I dont know how to use it!