No token received from the gateway yet. Unable to encrypt the access key

openHAB 2.3.0
I have the Xiaomi gateway with the latest firmware. It was working for a couple of weeks. Then, when I ran openHAB, I get this error in console:

No token received from the gateway yet. Unable to encrypt the access key

Now nothing works in paper UI and I can’t control my gateway and the other xiaomi sensors.