Slow Loris hum/low volume issues

[Bike.pusher]

Recently built a Slow Loris as my first build, everything seemed to go smoothly no major hiccups.  However, when I tried to rock it i got no volume.  I flipped the IC and now I have volume.  I'm getting a wicked hum and very low volume however, all pots seem to be working just something isn't right. I'm not really sure where to start. If you have the magic answer by all means I'd love for someone to teach me, but what I'm  really looking for a "how to" type troubleshoot so I have the knowledge the next time.