Database problems

[RoC wonko]

Can anyone tell me how to rebuild this table, bear in mind I no next to nothing about databases, I have access to myphpadmin.

Database error in vBulletin 4.2.0:

Invalid SQL:

SELECT m.*,
d.firstpostid,
fp.title as discussiontitle,
fp.postuserid as discussionuserid,
fp.postusername as discussionusername,
fp.dateline as discussiondateline
FROM groupmessage AS m JOIN discussion d ON m.discussionid = d.discussionid JOIN groupmessage fp ON d.firstpostid = fp.gmid
WHERE m.gmid >= 0 AND m.gmid <= 0;

MySQL Error : Table 'reignofc_vb.discussion' doesn't exist
Error Number : 1146
Request Date : Saturday, August 11th 2012 @ 03:42:25 AM
Error Date : Saturday, August 11th 2012 @ 03:42:26 AM
Script : http://www.reign-of-chaos.co.uk/admi...0&indextypes=0
Referrer : http://www.reign-of-chaos.co.uk/admi...0&indextypes=0