VIP会员管理 激活时显示错误 请看

MySQL Error
Message: MySQL Query Error
SQL: update uchome_space set groupid= where uid='3'
Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'where uid='3'' at line 1
Errno.: 1064

请问该怎么解决，谢谢！