my problem with NO-IP.com..

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when i open my website, it is not showing the right page..i think it is somebody's or someones webpage.. i have configured my no-ip correctly.. because at first it is showing the my website..and yesterday, when i check my site..it is not my page anymore..it already change the hostname, and deleted the previous one.but still, it is not my page.. do you have any idea how to solve this issue? thank you.