把本地的公钥上传到cloudnium面板后，一开始的两天ssh都能正常登陆服务器。第三天登陆就报错：
ssh cloudnium
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
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:vp7DSBZ41NUyuyrhnAi0wWh9HnAlvB3U1VYMRdDsDjo.
Please contact your system administrator.
Add correct host key in /Users/user/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in /Users/user/.ssh/known_hosts:50
Host key for <ip> has changed and you have requested strict checking.
Host key verification failed.
然后就是输入root密码，但是把面板里面的密码重置之后输入会提示密码不正确，总之就是登录不上去，只能重新安装系统。
有人知道怎么解决吗？