Realtm,
The plugin is great and deserves a 4 or 5 star rating. I would have been happy to assist with troubleshooting at the time. However I had to abandon the use when I encountered this error because it was on a live site. I put in the support request 8 months ago and you hadn’t replied until last week. I understand it is a free plugin and you are not paid for support, so I am not complaining. Though, perhaps you should consider offering a paid support forum so that you are compensated for helping users that are willing to pay. Justin Tadlock, the developer of the Members plugin has really dialed this concept in. But I digress.
The good news is just this week, I installed SCIG on a new site for a band and it works great so far. So not sure what the problem was on the other site.