...doesn't really do anything to address the OP's question though, does it?

Does your generic "dont ignore failing tests" rant address the OP's question?

OP asked us what to do, he doesn't know, so he asked, and got a direct answer, ignore it

Room was left for other options

BrowserUks reply reaffirms the suggestion to ignore it, a suggestion you reflexively marked as terrible

Its like you buy a new air conditioner,
there is a weird message on the screen
but you can see temperature displayed and change/set the temperature you want,
the air conditioner cools the room and stops when reaches target temperature,
timer funciton works,
dehumidifier mode works,
fan only mode works,
all the buttons do what they're supposed to do,
decal is crooked and there is sometimes a weird message on the display

Why should the OP look inside air conditioner to investigate one weird message, air conditioner is doing everything is supposed to do ? Even if the OP was a mechanic or an air conditioner technician, what is the incentive to investigate other than boredom?

Frankly I'd like to see more logo rants than this noise