My b2evolution Version: Not Entered

I have this error, at place of calendar and archives, i trx to repare the base but no way, same message error:

MySQL error!

MySQL server has gone away(Errno=2006)

Your query:
SELECT COUNT(DISTINCT ID), YEAR(post_issue_date), MONTH(post_issue_date), DAYOFMONTH(post_issue_date) AS myday FROM (evo_posts INNER JOIN evo_postcats ON ID = postcat_post_ID) INNER JOIN evo_categories ON postcat_cat_ID = cat_ID WHERE MONTH(post_issue_date) = '05' AND YEAR(post_issue_date) = '2007' AND ( ( post_status = 'private' AND post_author = 1 ) OR post_status IN ('published','protected') ) AND post_issue_date <= '2007-05-07 15:34:09'

Thank's for help !