i'm so sorry!
i didn't read the main-post.
at all: if you have the same problem:
download
this.
you must everythin install above your component you want.
example: if you want the com_mls_seatmap you have to install com_mls_events and com_mls_lang too!!
without this, it won't work!
Thanks alot for the components! they're very nice!