UC appeals

Hello everyone. I need some serious help.
I applied to UCLA, UCSB, UCSD, and Cal only. I was sure I could get into UCSB. I didn’t get in anywhere and weight listed to only UCSB. I also somehow lost my ELC status right as the UCSD admiasion came out. After going over my application, I found that I accidently self reported a D in a regular biology class. Is this reason enough to appeal?
My stats: current 5.0 gpa, accumulative 4.3 GPA, 1800 SAT, 1950 super-scored SAT, 9 AP courses, a part time job where I was the only minor with a leadership position, and a plethora of ECs.
I’m reeling at the idea that I may be going to a community college next year. Is an appeal a viable option? Is there anything else I can do. Any and all help will be greatly appreciated.