API Error:Decryption of SNMPv3 password failed.

CMK version: Checkmk Raw Edition 2.2.0p25
OS version:DEBIAN-12

Error message:

What could be the problem?
I should add that earlier SNMP worked without any problem

Is this by any chance the Appliance?
Also, how does your host property and which SNMP version are you using for the authentication?