REKORDBOX V.5.8.5 - /DDJ-400 - Crashing

Hi, 

I'm runnning Rekordbox v 5.8.5 on windows 10 with a  Pioneer DDJ-400. I have had the DDJ-400 for about a month now which came with a free sub to rekordbox 5.

The trouble I'm having is that if i'm in a middle of a set, Rekordbox just randomly decides to  crash  to a black screen and my computer restarts.  As this is  just happens randomly and is more frequant, i'm finding it difficult to pinpoint what the exact issue is.

Has any else expereinced this before ? if so what did you do overcome this issue,any assitance will be much appreciated. 

Thanks