Can't execute payment using KUDOS on selfhosted merchant backend

Community Getting Started
1

Hello

We are working on the Taler Kivitendo ERP integration and we managed to set up a merchant backend for testing purposes.

We ran into an issue somewhat similar to this:

Can’t connect selfhosted Merchant to official KUDOS exchange

However in our case we managed to create an order. But when trying to pay the order using a wallet, we get an error:

image
image461×1024 59.2 KB

I’m not sure what to do in order to debug this further. Does anybody have an idea or should we report it in the Taler mailing list or maybe open an issue?

Thanks, Best

Edit: We documented our setup process here: https://codeberg.org/revamp-it/kivi-taler-integration-design-docs/src/branch/main/01a-Setup-and-testing-of-the-merchant-backend.md

The merchant backend version is: 25:0:13

The wallet is Android app version: 1.5.0 (fdroid 812) wallet core version 1.5.2 (1caeedd)