Blackwidow chroma V2 lighting on ps5 issues

Hii. I've been using my Blackwidow Chroma V2 keyboard on my ps5 for a year with no issues until my cat sat on the keyboard and pressed something. I don't know what he pressed but my keyboard now no longer lights up. Still works just fine. The white light does come on the caps lock key whe you press it but otherwise, the rainbow colours are gone. Any idea how to fix?