Ok, well my name servers that I received from 000webhost dont appear to be allowed. Whenever I type them in, it says: One of the name servers you submitted does not exist; please check the spelling and try again
It looks like these name servers are not part of the .CN central registry's gateway yet. That is why you are getting an error message when you try to set your domain to use them.
I have asked the central registry to add your name servers to their gateway.
It appears that you were able to set the name server names, but those name servers aren't returning an IP address for your domain. Please ask you web host to add your domain to their nameservers. You may also want to confirm you are using the correct name server names.