It's just 'situation normal' at the most expensive, incompetent, arrogant air traffic control organisation with the world's worst safety record, namely Skyguide.
They now operate from a massive palace on Dubendorf airfield - that might give a hint as to the cause of the problem: the Swiss have uniquely decided to coordinate civil and military control in one organisation in a cynical attempt to protect the Skyguide dinosaur from the more logical solution, which would be to hand over Swiss airspace to an enlarged Maastricht/Frankfurt/Milan/Marseille.