If you are using Plesk make sure you have DNS turned on in DNS Settings.
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You should confirm what os and panel do you use, so WHT members can help you.
He already mentioned he is using Plesk, however I do believe its got to do with the actual domain registration. Some specific extensions, as in Ghana, are a little tricky to register and I believe his domain was not yet registered, even though he sees it in his domain panel. Best to check with your registrar to see if everything is done on their side, and be sure to ask them WHEN exactly the registration was processed so you can have a rough idea of the propagation.