I did not file any copyright infringements against anyone. The code is available publicly on the blockchain, and open-sourced on a number of blockchain explorer sites, I more than expected copy-cats, and never intended to "copyright infringe" anyone.
The reason my site went down is that meteor is no longer offering hosting services.
In the meantime, a replacement has been made on
http://ethpyramid.tkCool. Now I can access the site once again. Say, will I still get paid even though the site has been replaced? (with another domain, etc) I'm asking just in case (since I'm not very knowledgeable about ETH yet)

Looking forward for this pyramid to grow in deposits, so that I could receive my payout faster.

The contract can never be taken down, irregardless of the site changing names or anything like that. The contract runs separately on the Ethereum network. Unless the Ethereum network is taken down or something, it will always be up.