help with a db error please!

[bomber1614]

heyy guys, i have been getting this db error for a while now cause idk how to fix it and its only when i want to send a message or view a thread! here is the db error code:

Database error in vBulletin 4.1.9:

Invalid SQL:

			(SELECT 'package' AS classtype, package.packageid AS typeid, package.packageid AS packageid,
				package.productid AS productid, if(package.productid = 'vbulletin', 1, product.active) AS enabled,
				package.class AS class, -1 as isaggregator
			FROM package AS package
			LEFT JOIN product AS product
					ON product.productid = package.productid
			WHERE product.active = 1
				OR package.productid = 'vbulletin'
			)

			UNION

			(SELECT 'contenttype' AS classtype, contenttypeid AS typeid, contenttype.packageid AS packageid,
				1, 1, contenttype.class AS class  ,  contenttype.isaggregator
			FROM contenttype AS contenttype
			INNER JOIN package AS package ON package.packageid = contenttype.packageid
			LEFT JOIN product AS product ON product.productid = package.productid
			WHERE product.active = 1
			OR package.productid = 'vbulletin'  );

MySQL Error   : Table 'extre520_hax1997.contenttype' doesn't exist
Error Number  : 1146
Request Date  : Wednesday, January 11th 2012 @ 01:56:34 PM
Error Date    : Wednesday, January 11th 2012 @ 01:56:34 PM
Script        : http://extremehax.net/showthread.php?1-site-is-not-done-yet&p=5
Referrer      : http://extremehax.net/
IP Address    : XXX.XXX.XXX
Username      : Apex
Classname     : vB_Database
MySQL Version : 5.0.92-community

If anyone can help me, plz do i would appreciate it very much but i would appreciate it more if you could teamview me or skype me because i usually dont get some things lol! thanks!