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The .cc suffix is the country level domain for Cocos (Keeling) Islands in Western Australia. The owners of www.co.cc sell space on subdomains, e.g. franksrecipes, and then redirect.
I believe that Google do allow Adsense on subdomains, but it depends on the TLD. If another domain under .co.cc has broken Google's rules in the past, I guess it may have a knock-on affect.
I'm not sure if forwarding from a new domain will resolve this, but it's worth a try.
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