Mixvibes doesn't work after Restart

Hi!
I have a problem with my Mixvibes. I've bought it a week ago and it doesn't work correctly.
If I install and configure it, it works perfectly, but when I close Mixvibes and open it again, it doesn't work anyway.
I made some screenshots of my settings:
main (both decks play):

main settings:

mix settings:

audiokarte settings:

u46mk2 settings:

vinyl-/cd settings:

skin settings

u46mk2 settings:

after that i saved the mediabase, closed the programm, opened it again and then i wanted to open the mediabase, but an error occured:

the main problem is, that it works perfectly after i've installed it, but when i open it again, it doesn't work...
do have any idea?
greetz from germany
I have a problem with my Mixvibes. I've bought it a week ago and it doesn't work correctly.
If I install and configure it, it works perfectly, but when I close Mixvibes and open it again, it doesn't work anyway.
I made some screenshots of my settings:
main (both decks play):

main settings:

mix settings:

audiokarte settings:

u46mk2 settings:

vinyl-/cd settings:

skin settings

u46mk2 settings:

after that i saved the mediabase, closed the programm, opened it again and then i wanted to open the mediabase, but an error occured:

the main problem is, that it works perfectly after i've installed it, but when i open it again, it doesn't work...
do have any idea?
greetz from germany