Kulang 1 unit for R Micro Certification?

Helloooo

Im in a dilemma here. I graduated from my BS in Biology Program and just found out that I am short 1 unit for me to take the RMicro certification. I only have 23 units (including my thesis). What could I possibly do to solve this. Could I enroll in a single class or are there PAM certified seminars I could attend to compensate for that single unit?