DDJ400 problems using as audio card for Ableton

I was using my recently bought DDJ-400 as an audio card output for working with Ableton Live 9.7. It was working fine.

When I tried to plug my Machine Mikro into the other USB port, along with my Arturia Minibrute, the audio card simply stop working. At first, it gave me a high pitched note that only stopped after disconnecting DDJ-400 from the USB. Now, every time I try to choose "DDJ-400" from the Audio setup screen inside Ableton, it immediately turns the controller off (all the lights shut off), even when using only the card (without the Machine or Minibrute plugged).

Any possible solutions for this whole setup to work?
Or even to get the DDJ400 to work again with Ableton?

Thanks,