Issue Summary

Attempting to install the "Questions for Confluence" app from the Atlassian Marketplace results in an error message, and the app fails to install. This issue appears to occur exclusively on Confluence sites that are using the new billing experience.

We ran into a little trouble

Unfortunately, we're unable to process your request. Please retry again in some time.

Steps to Reproduce

1. Navigate to the Atlassian Marketplace (Apps > Explore apps).
2. Search for the "Questions for Confluence" app and select it.
3. Click on the "Try it Free" button to try to add the app.
4. Observe the error message displayed and the failure of the app to install.

Expected Result

The "Questions for Confluence" app should install successfully without any errors on Confluence sites using the new billing experience.

Actual Result

 The installation process fails, and an error message is displayed, preventing the app from being added to the site.

Workaround

At this moment, there's no workaround available for this. Atlassian's teams are investigating it.