Thanks! I thought that updater-* won’t be the Problem.
But with regard to appdata-* … I can’t find a prober way how to clean it up … Thing is that it is already pretty consuming.
Would it be a solution to simple setup NC anew and try to put all the databases and userdata into it? I guess that some occ commands would be required, what makes my case difficult…by the way what would be the correct commands?