Discuz! Database Error

(3277) Concurrency control waiting count exceed max waiting count
DELETE FROM common_session WHERE sid='Az2sI6' OR lastactivity<1764412022 OR (uid='0' AND ip1='216' AND ip2='73' AND ip3='216' AND ip4='20' AND lastactivity>1764415562)

PHP Debug

No.FileLineCode
1portal.php32require_once(%s)
2source/module/portal/portal_list.php87include(%s)
3data/template/23_diy_portal_list.tpl.php168include(%s)
4data/template/23_21_common_footer.tpl.php81updatesession()
5source/function/function_core.php27discuz_session::updatesession()
6source/class/discuz/discuz_session.php220discuz_session->update()
7source/class/discuz/discuz_session.php97discuz_session->delete()
8source/class/discuz/discuz_session.php89table_common_session->delete_by_session(Array, %d, %d)
9source/class/table/table_common_session.php76discuz_database::delete(%s, %s)
10source/class/discuz/discuz_database.php48discuz_database::query(%s, %s)
11source/class/discuz/discuz_database.php136db_driver_mysql->query(%s, false, true)
12source/class/db/db_driver_mysql.php154db_driver_mysql->halt(%s, %d, %s)
13source/class/db/db_driver_mysql.php225break()
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