Database Error when creating a Sitemap

When a I run the Sitemap Creator, it gives me the following error:





I'm using VBSeo 3.2.0 RC7 and Sitemap Generator 2.1


and I'm receiving mails with database errors, lots of them. This is a copy of one mail:

Database error in vBulletin 3.7.1:

Invalid SQL:

SELECT t_threadid,count(*) as cnt
FROM linkback
GROUP BY t_threadid;

MySQL Error : Table 'buforo.linkback' doesn't exist
Error Number : 1146
Request Date : Sunday, June 15th 2008 @ 04:46:27 AM
Error Date : Sunday, June 15th 2008 @ 04:46:27 AM
Script : vbseo_sitemap/vbseo_sitemap.php
Referrer : vBSEO Google / Yahoo Sitemap for vBulletin
IP Address : 190.31.126.26
Username : No Registrado
Classname : vB_Database
MySQL Version :

What's going on?? How can I fix this problem?

vBSEO Sitemap Update with 3.2.0 Release Candidates

thanks a lot.