Dirty Bill on "[Plugin: FeedWordPress] Database warning"

I've begun receiving database warnings in my logs: WordPress database error Unknown column 'wp_postmeta.meta_value' in 'where clause' for query SELECT SQL_CALC_FOUND_ROWS

More detail: MYDB.meta_key = '_feedwordpress_retire_me_45' AND wp_postmeta.meta_value = '1')

http://wordpress.org/extend/plugins/feedwordpress/