The domain name http://celeoteam.xx.tn does not have its name servers set to
ns1.byet.org
ns2.byet.org
ns3.byet.org
ns4.byet.org
Please change the domain name http://celeoteam.xx.tn to use these name servers, then wait at least 60 minutes, and retry.
The domain name (http://celeoteam.xx.tn) does not appear to be a valid domain name