ZISS480DHBSS

Hello, I am hoping someone can help me! We moved into a home about 3 months ago and just recently the lights on the fridge side of our ge monogram side by side have stopped working. The freezer side lights still work, and when you open the freezer door, some lights will come on in the fridge side (but not all- the LED light panel on ceiling on fridge will not illuminate). Any idea on what part would be causing this issue? I am having a hard time finding a solution to this problem… there doesnt seem to be much available online for this particular model. I appreciate any help!!