网站有个别文章出现这个数据库错误要怎么解决

网站有个别文章出现这个数据库错误要怎么解决
Discuz! Database Error(1064) 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 '' at line 1SELECT `grouptitle` FROM common_usergroup WHERE `groupid` =