Help sort out my patchbay

I have a small writing studio in my home. I need help sourcing a problem with my patchbay. Two really easy issues to solve. I need to identify why my 500 series Better Maker compressor is receiving 12 to 14 Db on the left channel. It’s in an API lunch box. The mic preamps in the lunch box work fine. I can’t figure where the problem lies: I’d it the loom 25 pin to XLR the patchbay. the connection with my UAD Apollo or a fault with the compressor. Also need help optimizing my patchbay and connections to my lunchbox