deleted all my databases

To recover your lost data : Send 0.04 BTC to our BitCoin Address and Contact us by eMail with your server IP Address or Domain Name and a Proof of Payment. Any eMail without your server IP Address or Domain Name and a Proof of Payment together will be ignored. Your File and DataBase is downloaded and backed up on our secured servers. If we dont receive your payment,we will leak your database.

This is obviously the biggest nonsense, paying with Bitcoin is anonymous so the scammer cannot know who the money came from (there is no sender). The story as described in the mail is therefore incorrect and is not based on truths.

An attacker deleted the databases stored on my server and left this message : To recover your lost data : Send 0.04 BTC to our BitCoin Address and Contact us by eMail with your server IP Address or Domain Name and a Proof of Payment. Any eMail without your server IP Address or Domain Name and a Proof of Payment together will be ignored. Your File and DataBase is downloaded and backed up on our secured servers. If we dont receive your payment,we will leak your database.