error message when searching archives

citychicken

when i attempt to search the archives at the new site i get the error message posted below. i have tried very generic searches like "trex". "pulled pork", etc. without any returns or matches. i am not certain if the error message is identical for each search but does indeed appear to be the same.

error message:

Search Keyword trex
Notice: Unknown column 'a.created' in 'order clause'; query=SELECT a.title AS title, a.description AS text, a.date AS created, CONCAT_WS( ' / ', 'Web Links', b.title ) AS section, '1' AS browsernav, a.url AS href FROM mos_weblinks AS a INNER JOIN mos_categories AS b ON b.id = a.catid AND b.access