SS登出后在登陆出现问题

SupeSite info: MySQL Query Error

User: guest
Time: 2008-5-20 6:32pm
Script: /supesite/batch.login.php

SQL: SELECT COUNT(*) FROM [Table]userspaces WHERE uid='3'
Error: MySQL server has gone away
Errno.: 2006

MySQL Query Error

SELECT * FROM `discuz`.uc_notelist WHERE closed='0' ORDER BY pri DESC, noteid ASC LIMIT 1
MySQL server has gone away

怎么搞的