منتدى استراحات زايد - Forum data base error while upgrading

i found this error while upgrading

PHP Code:
Database error in vBulletin 3.8.4:

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 : Illegal mix of collations (latin1_swedish_ci*IMPLICIT) and (latin1_general_ci*IMPLICIT) for operation '='
Error Number : 1267
Request Date : Wednesday* December 23rd 2009 @ 05:53:32 PM
Error Date : Wednesday* December 23rd 2009 @ 05:53:32 PM
Script : http://www.7war.org/vb4/install/upgrade_400a1.php?step=8
Referrer : http://www.7war.org/vb4/install/upgrade_400a1.php?step=7
IP Address : 41.233.108.126
Username :
Classname : vB_Database
MySQL Version : 5.0.85-community

what is that error ?