There is nothing wrong in the log, aside (unrelated) failing gstreamer plugin warnings: did you properly install gstreamer on your system ?... Even in the affirmative, you might want and reinstall it from scratch (see
this message, please).
Not sure what your issue is, by lack of proper information about the items in question and what were the options selected in the outfit creation floater (plus, you are using a skin which I am unfamiliar with and does not allow to clearly distinguish unavailable items in a list from available ones).
Note that if the items permission prevent from copying it, you will not be able to make a new outfit with it, unless you checked the "make link" box...