Whatsapp from storeman/openrepos

I tried to install whatsapp from storeman: whatsapp | OpenRepos.net — Community Repository System

On a Xperia pairing works and the app runs as expected.
On my daily driver (Volla Quintus with @piggz current built) I cannot pair, on the CLI I get:

curl -m 5 http://localhost:8085/status
curl: (7) Failed to connect to localhost port 8085 after 0 ms: Could not connect to server

What am I doing wrong on my daily driver? What can I do to successfully pair?
I am stuck at this localhost cannot connect.

Ask the dev:

i used claude “ai” to develop this app. sources are here: GitHub - smatkovi/harbour-whatsapp