Discuz! Database Error

(1062) Duplicate entry '839621' for key 'PRIMARY'
REPLACE INTO forum_postcache SET `pid`='839621' , `rate`='N;' , `comment`='a:3:{s:5:\"count\";i:1;s:4:\"data\";a:1:{i:0;a:12:{s:2:\"id\";s:6:\"186682\";s:3:\"tid\";s:6:\"196433\";s:3:\"pid\";s:6:\"839621\";s:6:\"author\";s:6:\"单长华\";s:8:\"authorid\";s:5:\"30962\";s:8:\"dateline\";s:10:\"1533480965\";s:7:\"comment\";s:4:\"谢谢\";s:5:\"score\";s:1:\"0\";s:5:\"useip\";s:14:\"219.147.95.212\";s:4:\"port\";s:5:\"17278\";s:4:\"rpid\";s:6:\"841848\";s:6:\"avatar\";s:77:\"<img src=\"http://www.zgycgc.com/uc_server/avatar.php?uid=30962&size=small\" />\";}}s:12:\"totalcomment\";N;}' , `dateline`='1563228326'

PHP Debug

No.FileLineCode
1forum.php71require(%s)
2source/module/forum/forum_viewthread.php905discuz_table->insert(Array, false, true)
3source/class/discuz/discuz_table.php81discuz_database::insert(%s, Array, false, true, false)
4source/class/discuz/discuz_database.php60discuz_database::query(%s, %s, %s, true)
5source/class/discuz/discuz_database.php137db_driver_mysql->query(%s, %s, true)
6source/class/db/db_driver_mysql.php152db_driver_mysql->halt(%s, %d, %s)
7source/class/db/db_driver_mysql.php223break()
www.zgycgc.com 已经将此出错信息详细记录, 由此给您带来的访问不便我们深感歉意. Need Help?