Error importing model into Retera Model Studio

[F1y]

Hi everyone. I made a custom model in Blender, and when I tried to import it into Retera Model Studio for further adjustments without textures and UVs, everything seemed fine (only triangulation). But when I tried to import it with a baked/applied texture via Bake, I get the error from the screenshot. I'm not very familiar with texturing, so I'm not sure what I'm doing wrong. Could you help me? I've attached two versions of the blend file: one with only triangulation and no textures, and the other with UVs, Texture, and triangulation. I've also attached a texture.

Hi everyone