Error while importing mesh

[Rooilo0]

Hello:
Simple: I can’t import this mesh: Casserole2.obj (21.2 KB) it gives me error 500. I seacrhed it on other posts but it says (SOLVED) whitout solution or other ones says that is alredy fixed.

Do someone know how to fix this?

Edit: With the wireframe seen of the model I found this black faces:

(One on each side)
Do they cause the problem?

[Rooilo0]

I deleted the black faces, and created them again (then they wasn’t black) and it worked.