Urbackupclientbacken.service failed with exit-code!

Hello Guys,
Could you please assist me on this topic, I’m really new with urbackup, I’ve installed the agent, but the service can’t start, it gives me this error message?

Started urbackup client backend.
urbackupclientbackend error : Internet server not configured please configure “internet_server”.
urbackupclientbackend.service main process exited, code=exited, status=2/INVALIDARGUMENT
urbackupclientbackend : Failed with resuilt ‘exit-code’

It’s impossible to help you with that little information.

Provide more info and someone might be able to help.