i figured out why, i just dont know how to fix it. i recently replaced all the bulbs to find out what bulb (on the right side) was causing it, and it was the right reflector light (amber). inside the bulb, one line wire thing lights up instead of both (they are brand new), and its the same when i put in either bulb. I noticed it because the reflector light on the left side was noticeably brighter then the right side.

i know for a fact that both amber bulbs are in correctly, i just dont know why the one on thr right side is not lighting up completely.