How to reproduce:
- Create a course with a "Free" booking option, and unset the automatic option
- Send the link to a user from the details view. The link must see like that: https://testing.frentix.com/test8/auth/RepositoryEntry/304152576/Infos/0 with the Infos/0 at the end.
- The user use the link and book the course -> Controller disposed message instead of the course
There is probably some other way to reproduce the issue.