If it’s you, or that person isn’t responding:
What is the status of the server? Can you ping it?
Can you SSH into it?
If no, probably need to restart or some other thing. Really depends on the situation
If yes, what do the logs say?
The “too long to respond” error implies that the server is down or that it is no longer connected to the network. It might help if the person who is ostensibly in charge of the server would reboot it.
If whoever you called was unable to resolve this problem, then it’s either the wrong person or they are not doing their job.