If your system is automated i.e., the answers you put in are auto-saved and if you don't submit , the answers you have saved will be uploaded then that way you are safe. But if it's not automated and if your college professor says that nothing can be done then the possibility dictates that you will be marked Absent in that examination and you have to appear again for the paper in some other time as a supplementary student.

Sorry to say this. I wish your problem gets solved.

All the very best for your future endeavors & Best of luck!