Databse error when i switched host

[alessai2]

i recently switch my host, and took db backup, restored it, it works fine
but it gives database error when i run sitemap generator..

Database error in vBulletin 3.6.8:

Invalid SQL:

SELECT p.dateline,p.postid,p.threadid
FROM vb_post AS p
WHERE p.threadid = 1302
ORDER BY p.dateline;

MySQL Error : Lost connection to MySQL server during query
Error Number : 2013
Date : Saturday, February 16th 2008 @ 01:12:59 PM

can anyone tell me whats causing it?

i ran this query using phpmyadmin, and it gave 3 results, so there is nothing wrong with the query..
can anyone please help?