SSH login authentication issue

Hi

I've set up a home server, and login from my desktop using SSH.

But recently, I see this kind of message appearing:

Code:$ ssh server@192.168.1.82
The authenticity of host '192.168.1.82 (192.168.1.82)' can't be established.
ECDSA key fingerprint is SHA256:xxx [edited]
Are you sure you want to continue connecting (yes/no)?How would I go about resetting the key?

Thanks