SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: SELECT sum(s00) AS s00, sum(s01) AS s01,sum(s02) AS s02,sum(s03) AS s03,sum(s04) AS s04,sum(s05) AS s05,sum(s06) AS s06,sum(s07) AS s07,sum(s08) AS s08,sum(s09) AS s09,sum(s10) AS s10,sum(s11) AS s11,sum(s12) AS s12,sum(s13) AS s13,sum(s14) AS s14,sum(s15) AS s15,sum(s16) AS s16,sum(s17) AS s17,sum(s18) AS s18,sum(s19) AS s19,sum(s20) AS s20,sum(s21) AS s21,sum(s22) AS s22,sum(s23) AS s23 FROM bb1_jgs_hits
mysql error: Unknown column 's11' in 'field list'
mysql error number: 1054
mysql version: 5.5.31-1~dotdeb.0
php version: 4.4.9-0.dotdeb.1
Date: 20.09.2014 @ 05:53
Script: /thread.php?postid=17
Referer: