The last days and the next ones there is maintenance work in progress on the server, maybe this is what causes the error.
Some question to troubleshooting this:
- Is the station functional? I mean do you schedule observations and get back results in Network?
- Given that by default client asks the server every two minutes for new jobs, when you run the command
sudo journalctl -f -u satnogs-client.service, do you see this error every two minutes or it happens from time to time?