by How to delete the server:
If you want to delete your server, you can go to Reinstall tab and select “Delete files” under advanced options after selecting your variant and version.
Once a server is deleted there will be no going back and freemcserver.net does not keep backups of anything after deletion so it will be permanently deleted.
How to delete the account:
If you still want to delete your account, go to your Account settings -> Delete Account
Once an account is deleted, you will be blacklisted and will not be allowed to use the service again in the future, even under a new account.
