@leoborni see if it is stuck in descale mode. Press both green lights for 3 secs and it should flashing at a slower rate. When they stop flashing it should be good to go.
I’m my case it was the water container had leaked water into the hole underneath, I had descaled using vinegar then done all the cleaning and flushing only for it to start flashing continuously. I removed the water container dried it out and now all fine again, coffee back. It was in the hole not in the round gully that the container sits in. It worked for me hope it works for you.