ssh: connect to host csrobo.com port 22: Connection refused

This error message means that the SSH client was unable to establish a connection to the specified host (csrobo.com) on port 22.

There could be a few reasons why this error occurs:

1. The SSH service may not be running on the host, or it may be running on a different port.
2. The firewall on the host may be blocking incoming SSH connections on port 22.
3. The network connection between the client and the host may be lost or unstable.

To troubleshoot this error, you can try the following:

1. Verify that the SSH service is running on the host and listening on port 22.
2. Check the firewall settings on the host to ensure that it allows incoming SSH connections on port 22.
3. Verify that the network connection between the client and the host is stable.

If you are still unable to connect, you may need to contact the system administrator or hosting provider for further assistance.