My Chime has stopped working

I have a Ring doorbell and a Chime (2nd gen). They both worked initially but after a month the chime stopped working. I tried to reconnect to the WiFi but it wouldn’t. I uninstalled it to no avail. None of the lights come on even when resetting. I’ve checked the power and the chime light flashes green for a split second when connected to power but then nothing else happens.