Title explains everything :)
Crash Report
Forge: 1808
C&B: 8.7 ( corrected version )
Item Scroller

Forwarding to ItemScroller to see if they will add a check.

Ok, I just didn't have any other problems with it and assumed it must be on your end then. Sorry.

Its kind of a fuzzy area, since it only happens when another mod uses its its fake slots, I wish I had an idea of how to fix it, but people can get access to the fake slots by asking for the active slot, and I can't really guard against that.

This has now been fixed in Item Scroller 0.2.3.

Thanks, I added a second issue to into find a better solution for the fake slots as well.

#34