Mine's been like that too for a couple of days. I thought it was because our local airport has now closed and revert to sole use by the Spanish Airforce and so now doesn't have an ICAO code. I edited the code in the php file to use the code for our new regional airport, but it didn't make any difference ... so, I too am at a loss to explain what is going on.
For the time being I've reverted to the Cumulus forecast.
I hope it can be sorted.
