Failed Clinical because of paperwork

Hi I am being told I failed clinicals because of my paperwork had some mistakes. I was not given a chance to resubmit my paperwork at all, and my professors told me to appeal my grade. I am still in nursing school and most of the mistakes are about neurology which we learn next semester. I am wondering how is the best way I should appeal this grade? My clinical professor refuses to pass me even though I have an 80 average in nursing. They won’t let me repeat the semester. My two years of work in nursing school I feel is all being undone because they won’t allow me to resubmit my paperwork, yet they are allowing me to sit for my finals. I feel so discouraged and do not know what to do. I went to my circulum chair who won’t over turn it.