Error while loading page lovelace... not sure why?

Configuration Frontend
1

Not sure when this happened, but I would say it’s as a result of the latest update.

When selecting any of the menu options below…

SetupScreen
SetupScreen1274×786 77.2 KB

I receive the following error…

LovelaceError

The only selection that doesn’t throw an error is…

OnlyScreen Working

The logs appear to be not happy with Zigbee2MQTT, but that could be unrelated?

Zigbee2MQTTError
Zigbee2MQTTError1264×300 173 KB

Any ideas/suggestions much appreciated.

2

This can be closed. Turns out it was my browser, and when I tried the same functions on another computer it was fine. Apology, this can be deleted if the mods so wish.