Rainloop sieve error


I am trying to get the sieve to work.
I have always used filters.

I have whitelisted port 4190 on the cyberpanel dashboard. and restarted the firewall.

But I can’t seem to get it to work.
Here is the setup I got.
And I get this error:
stream_socket_client(): unable to connect to tcp://localhost:4190 (Connection refused)