Help can't record dj set internally ddj400

Help can’t record dj set internally ddj400

I have a ddj400 which came with a rekordbox license. My issue is that I can use the internal recorder however, the recordings in rekordbox files on my computer show up but they are greyed out.
I tried to go to recordings tree and drop the recording I tested into the deck as I saw in a youtube video, but when I do that I get a circle with a bar across it. It will not load into deck.
Thank guys I have been pulling my hair out trying to figure this out

Nevermind, got it working. I connected the usb cable from my Numark M6 to laptop and rekordbox finally asked if I would like to use the mic etc. I clicked yes and everything is sorted.