Billy Oliver
Billy Oliver
Same happened to me, downgraded to 1.36 to get things working again. The error was 502 when trying to start the add on.
Same issue ... so reverted back to v1.36
Found my issue .. the mqtt url contained a `/` before the port no. which is a malformed url ... so removed and then reinstalled 1.37 and all is ok...
Try going into add-ons/ZigBee2MQTT/configuration and check the mqtt server URL is not malformed in anyway, I think v1.37 is less forgiving with malformed URLs than 1.36
Mine is like mqtt://homeassistant.local:1883 ... note, no '/' after host and before port no.