Squid 2.2.2 with latest Squid - Carp XMLRPC error

[stanthewizard]

Hello

I have 2 FW in Carp mode.

When I change a setting in Squid or Reverse Proxy Squid, the setting is synced but I get this error

[ [Squid] An error code was received while attempting squid XMLRPC sync with http://10.254.254.20:50080 - Code 2: Invalid return payload: enable debugging to examine incoming payload]

Can you help ?

Thank you