When connecting to another device using SSH it's probable you will receive the following warning.
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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 ED25519 key sent by the remote host is
SHA256:v8wTNMITwck7XKblLxcqIB09/cLK+a2tbJ+av1kry9A.
Please contact your system administrator.
This happens when you have previously connected to that device but its fingerprint has been changed. A fingerprint can change if the device has been reinstalled.
To remove this warning and be able to connect to the device you should execute the following command.
ssh-keygen -R [IP]
You should replace [IP] with the IP of the device you're trying to connect. For example:
ssh-keygen -R 192.168.1.14