A domain name has stopped working and it's status is clientHold, what does this mean?
When a domain slips into a clientHold status on the domain whois, this means it has expired and has been placed into a hold state. During this time, you have approximately 40 days from the domain names expiry date to renew the domain without paying an additional RGP fee:
Once the domain name has been renewed, the clientHold status will be removed and it will begin to resolve once again. If you’re unsure how to renew your domain name, please see “How do I renew a domain name?“.