The supported firmwere patch is not reachable or is not available for the update from apple or we cannot download it due to network issues maybe some apple ports are blocked. I believe some of the apple OS updates are not synched with the touchbar firmwere thats why this problem occurs. However after further research I could conclude that the problem lies in the firmwere update for touchbar which is not in sync with the latest catalina update so when the laptop restarts it cannot find the firmwere for touchbar.
after some research I was disheartened by reading many blogs where the logic board replacement solution was provided by apple and for many they had replaced their laptops.
My macbook pro is 15 inch with touchbar,2016 model.
