### Steps to reproduce

1. Begin of the insertionBuild the container for the release branch via `docker build -t openproject-16-release-build -f docker/prod/Dockerfile .` in the `openproject` core folder on the `release/16.0` branch

2. End of the insertion Start an OpenProject on-prem community edition: `docker run --rm -e OPENPROJECT_HTTPS=false -e OPENPROJECT_HOST__NAME=localhost -p 8080:80 -it openproject-16-release-build`

Begin of the insertion3.End of the insertion Begin of the deletion 2.End of the deletion Click on any upsell banner to go to the upsell page

Begin of the insertion4.End of the insertion Begin of the deletion 3.End of the deletion Try to start a trial


### What is the buggy behavior?

* internal error


### What is the expected behavior?

* it should work


### Environment information

**OpenProject installation type**

* Packaged installation

* Docker All-in-one container

* Docker-compose installation


**OpenProject version**

_v16.0.0 (release branch)_