Tsk, I Mistakenly Programmed Wrong Class

Maybe I forgor the old Indonesian saying "biar telat yang penting selamat" that I mistakenly programmed wrong class whose lecturer is always late to give final scores to his students. I was in hurry really to proceed it because heard the due time of KRS process was 25 January. Eventually, I can proceed it on studying time at the campus but I am afraid that the class I want to program is full occupied by other students.
Thus, by today I gotta deal with it in order to move to another class. Hopefully, the business will run easily.