Solve Warning: REMOTE HOST IDENTIFICATION HAS CHANGED

Do you got an error that remote host can’t be accessed? like this? “It is also possible that a host key has just been changed.”

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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
SHA256:XXXX.
Please contact your system administrator.
...
ECDSA host key for XXXX has changed and you have requested strict checking.
Host key verification failed....

To solve this, We can delete the offending key from the known_hosts

ssh-keygen -R "HOST IP ADDRESS"