Error in SSH link to remote server:

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@    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
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IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that a host key has just been changed.
The fingerprint for the ECDSA key sent by the remote host is

Reason: an authentication credential will be generated during the first SSH link and stored in the known in the client_ Hosts, if the server address is reset or reinstalled, this problem will occur. Barabara…

Solution:

1.
ssh-keygen -R [server address]

2.
Re-ssh connection