Seafile-controller somehow killed seaf-server component periodically

[1111]

Following this post to rollback.

Rollback to old Server Version

I couldn’t find an answer in the documentation or via google. Since the newest Seafile Server Version is not working on my system I would like to roll back to the 6.2 version until I find a workaround or fix for the newer version. How can I downgrade my server without losing files or configurations?