When you install Opencast 7 from our Debian testing repo, logs are currently written to `/usr/share/opencast/data/log` instead of the more idiomatic `/var/log/opencast`.
Fixed in a60c014c2d0edd34e81351acc1198ff92bc5c075, identified a few other issues and resolved them as well. Built and pushed 7.0-2 to testing repository.