Rekordbox 7.0.4 crashes when I click the browse button on DDJ-SB2

I'm still learning, and been using Rekordbox 7.0.4 for the last month with no issues. Today, when I open rekordbox it lets me click into a folder using the 'browse' button but then when i click it again to get out of that folder the application crashes. I've tried restarting my computer etc & downloading Rekordbox 6 but with the free plan you cannot use a controller. Any help?