Just the word “temperature” would be a very non-professional error message imho.
When the same notification isn’t mentioned at the timeline as well:
The only thing I can think of: there’s a forgotten (test) flow somehow, probably driven by a temperature sensor, and you added a Push notification action card with the word “temperature”.
(Hint: always add the flowname to notifications).
To find out: try the Homey “Audit” app, maybe it reveals the source of this push notification. It spits out (almost) every event.
