I disabled the setting for the item sorter and fabric will no longer launch with Interactic added. Since I can no longer run Ineteractic, I can't re-enable the sorter.

I believe i have the same issue, my game also crashes when i disable the item filter. Here is my log: https://paste.ee/p/zw72i

Fixed in 0.1.10

Could you give us the crash report, or ideally the entire latest.log file from right after the crash? With as little information as you have given here, it is basically impossible for us figure out what's wrong
Cheers