Hello vmassol,
did a clean setup of the XWiki docker container and installed the default Flavor, which was able to get through even the docker container for xwiki (not the DB related container) stopped a couple of time, but I just restarted it and kept going. thanks alot for all the work everyone has contributed to make XWiki possible. Now it is time for to learn xwiki and hopefully I can contribute in an effective manner.