To be specific, the program I was doing for a class and I was trying to replace a model of a teacup with a model I made in Lightwave Modeler (going to be a pyramid, but the teacher said if it doesn't show up to make it simpler, so right now it's a triangle), and when I run the program, I encounter this error.
I replaced the model with all types of models, including cubes, balls, and cones—in the modeler, but it says the same. I'm just confused and want to know why or even what that error means.