Error with my products

[NLPLegacy]

Database error in vBulletin 3.8.6:

Invalid SQL:
SELECT t.* FROM credits_transaction AS t LEFT JOIN credits_event AS e ON (t.eventid = e.eventid) WHERE t.userid = 1 AND t.status = 0 AND t.timestamp <= (1289162502 - IF(ISNULL(e.eventid), 0, e.delay)) ORDER BY t.transactionid ASC LIMIT 1;

MySQL Error   : Table '*****_***.credits_transaction' doesn't exist
Error Number  : 1146
Request Date  : Sunday, November 7th 2010 @ 01:41:42 PM
Error Date    : Sunday, November 7th 2010 @ 01:41:42 PM
Script        : http://*********.com/forums/index.php
Referrer      : http://*********.com/forums/******/index.php?do=head
IP Address    : **********
Username      : Legacy
Classname     : vB_Database
MySQL Version : 5.0.91-community

I have no idea what's wrong and I don't know how to fix this. I've also tried another cash system and the same thing happens