i made a few steps forward. i think this is a realy old problem that just didn´t bother me because i took a bigger harddrive. i decided to make a comletely new system.
the old problem was that the system got unresponsive and the after a while some items and things were deleted.
i thought it had something to do with the rule dsl engine. after i replaced nearly all dsl rules with ecma rules everything worked fine for the moment. at this time i also changed my 16gb sd card for a 120gb ssd. i think the issue had something to do with space, not deleting log files or something like that.
i don´t realy know if the problem is related or not but it doesn´t matter anymore because i decided to start a new installation without using a backup.
i didn´t had the best start and ran into the next issue …
but this is a different story…