CMS URGENT! database issus!

[محروم.كوم]

can someone help me tell me how to fix this error:

Code:
Database error in vBulletin 4.0.0:

Invalid SQL:
SELECT node.nodeid , (node.nodeleft = 1) AS isroot, node.contenttypeid, node.contentid, node.url, node.parentnode,
(CASE WHEN node.contenttypeid = 17 THEN node.styleid ELSE parent.styleid end ) AS styleid, node.userid,

(CASE WHEN node.contenttypeid = 17 THEN node.layoutid ELSE parent.layoutid end ) AS layoutid,
node.publishdate, node.setpublish, node.issection, node.permissionsfrom, node.nodeleft, node.noderight,
node.userid, node.showtitle, node.showuser, node.showpreviewonly, node.lastupdated, node.showall, node.showrating,
node.showupdated, node.showviewcount, node.showpublishdate, node.settingsforboth, node.includechildren, node.editshowchildren,
parent.permissionsfrom as parentpermissions, node.publicpreview, node.comments_enabled, node.shownav,
node.hidden, node.nosearch

FROM pb_orgcms_node AS node
LEFT JOIN pb_orgcms_node AS parent ON parent.nodeid = node.parentnode

WHERE node.nodeid = 348;

MySQL Error : Unknown column 'node.shownav' in 'field list'
Error Number : 1054
Request Date : Monday, February 8th 2010 @ 0333 PM
Error Date : Monday, February 8th 2010 @ 0333 PM
Script : http://new.picbasic.org/content.php/348/edit
Referrer : http://new.picbasic.org/admincp/cms_...in.php?do=list
IP Address : 86.147.139.224
Username : rob
Classname : vB_Database
MySQL Version : 5.1.37-1ubuntu5
thank you

Rob __DEFINE_LIKE_SHARE__