i move my installation subdomain clients to client but now that show
Your license key XXXXXXXXXXXXXXXXX is invalid. Possible reasons for this include:
An incorrect license key has been used
The IP Address your system is using has changed
The domain you are using has changed
The directory you are using has changed
You can reissue your license from the WHMCS client area to save the new IP, Domain & Directory settings and get your WHMCS system working again.
Please help me what should i do