https://www.mindphp.com/%E0%B8%9A%E0%B8%97%E ... p-shh.html
Add correct host key in /home/mindphp/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in /home/mindphp/.ssh/known_hosts:2
remove with: ssh-keygen -f "/home/mindphp/.ssh/known_hosts" -R 203.154.220.***
ECDSA host key for 188.8.131.52 has changed and you have requested strict checking.
Host key verification failed.
rsync: connection unexpectedly closed (0 bytes received so far) [sender]
rsync error: unexplained error (code 255) at io.c(605) [sender=3.0.9]