Hi and welcome.
yes, it can be anything but solvable.
- Did you try to smooth the object again? (right-click, select smooth)
- Did you connect the right nodes/bitmaps in your mesh material
- Some bitmaps need to be non-color information.
See (search) also other student questions about this, like Cavity map shows up with black squares - which also includes a link to the wiki.
let us know your progress!