I am very sorry. We had an outage in our license check system and it is possible that your OpenVidu PRO installation had also an outage.
To restart your OpenVidu service, connect through ssh to the OpenVidu Server Pro Node and run this simple command:
sudo systemctl restart openvidu.service
The problem is already solved and license check system is working again. We will implement fault tolerance measures to avoid these problems in the future.
I hope you can accept our apology.