when i try to uninstall i get this error and my forum is now down

Can anyone help me with this ..when i try to uninstall ipbpro2.6.8 i get this error

Database error in vBulletin 3.8.2:

Invalid SQL:
SELECT champ_gid AS gid, champ_mid AS userid, champ_name AS name, COUNT(champ_mid) AS total
FROM games_champs
GROUP BY userid
ORDER BY total DESC LIMIT 3;

MySQL Error : Table 'ggtwohun_thenew.games_champs' doesn't exist
Error Number : 1146
Request Date : Wednesday, June 3rd 2009 @ 12:30:29 PM
Error Date : Wednesday, June 3rd 2009 @ 12:30:29 PM
Script : http://www.gg2-hungama.com/new/
Referrer :
IP Address : 70.20.230.17
Username : Admin
Classname : vB_Database
MySQL Version : 5.0.75-community-log


please help someone