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Hello, a common reason for "unable to connect to your server" is that the server has been under high load for a long time (CPU or memory is maxed out), causing k3s to become unresponsive, which in turn disconnects the control plane. When this happens, you can try the following:

1. Go to the Zeabur dashboard → the Settings page of that server, and click Restart Server once.
2. After the restart is complete and the server is back online, first pause all services running on this server to let the node return to an idle state.
3. Observe which services immediately consume all resources after restarting, and then optimize those services (limit the number of replicas, reduce resource usage, or upgrade to a larger instance type).

However, we checked and found that you have already removed this server. Is there anything else we can help you with?