Database error

From Referata scratchpad

A database query syntax error has occurred. This may indicate a bug in the software. The last attempted database query was:

SELECT cat_title,cat_pages FROM `category` FORCE INDEX (cat_title) WHERE (cat_pages > 0) ORDER BY cat_title LIMIT 51

from within function "IndexPager::reallyDoQuery (CategoryPager)". MySQL returned error "1176: Key 'cat_title' doesn't exist in table 'category' (localhost)".