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 'system>0' at line 1
SELECT COUNT(*) FROM common_usergroup WHERE type='special' and system>0

PHP Debug

No.FileLineCode
1home.php24discuz_application->init()
2source/class/discuz/discuz_application.php70discuz_application->_init_cron()
3source/class/discuz/discuz_application.php513discuz_cron::run()
4source/class/discuz/discuz_cron.php48include(%s)
5source/include/cron/cron_member_optimize_daily.php13discuz_container->split(%d)
6source/include/cron/cron_member_optimize_daily.php13discuz_container->__call(%s, Array)
7source/class/discuz/discuz_container.php59table_common_member->split(%d)
8source/class/table/table_common_member.php358table_common_member->switch_keys(%s)
9source/class/table/table_common_member.php414updatecache(%s)
10source/function/function_cache.php47call_user_func(%s)
11build_cache_setting()
12source/function/cache/cache_setting.php97discuz_container->buyusergroup_exists()
13source/function/cache/cache_setting.php97discuz_container->__call(%s, Array)
14source/class/discuz/discuz_container.php58table_common_usergroup->buyusergroup_exists()
15source/class/table/table_common_usergroup.php135discuz_database::result_first(%s, Array)
16source/class/discuz/discuz_database.php117discuz_database::query(%s, Array, false, false)
17source/class/discuz/discuz_database.php136db_driver_mysql->query(%s, false, false)
18source/class/db/db_driver_mysql.php151db_driver_mysql->halt(%s, %d, %s)
19source/class/db/db_driver_mysql.php218break()
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