Character deletion causes fatal mySQL error

I've been adding characters to my categories before I realized you could have characters in specific sub-categories, to better organize everything. So I wanted to delete some characters that, rather than being in the main category, belong in the sub-category, but after I clicked the "Yes" (I'm sure I want to delete this), I got this error:

A fatal MySQL error was encountered.
Query: SELECT charid, recid FROM fanfiction_recommendations WHERE FIND_IN_SET('26', characters) > 0
Error: (1054) Unknown column 'characters' in 'where clause'

Where: http://epiphany.seventh-star.net/admin.php?action=characters&delete=26&confirm=yes
Terms searched: fatal mySQL error, character
I've got eFiction 3.3.1, PHP5 (CGI)... if there's anything else anyone needs to know, let me know, I think I've covered all of it...