Zinapse Admin is coming again soon! This was their resonse about that.
Due to security concerns from microsoft we are not allowed to give acess to every log file of your server. Which is then resulting in the issue that you cant set yourself as an administrator. However, we are working on building a admin interface for the webinterface currently. This is called "player management" in your webinterface. Right now it only supports banning players, in the near future it will also be possible to give someone admin rights and ban players over that menu.