帝国CMS后台添加信息报错Duplicate entry 'xx' for key 'PRIMARY

  Duplicate entry '3261' for key 'PRIMARY'insert into ***_ecms_news_index(classid,checked,newstime,truetime,lastdotime,havehtml) values('1','1','1446087639','1446087687','1446087687','1');

  INSERT INTO `phome_ecms_news` VALUES (3262, 1, 1, '', '', '', 1, 'admin', '', 1, 0, 1333244472, 0, 1, 0, 0, ',b|', '', '1', 0, 0, 0, 0, 0, 0, '帝国cms模板', 1333244427, '', 0, 1, 1350716513, 0, 0, 0, 0, '', '帝国cms模板网', 0, '1', '', 0, '', 0);

  CREATE TABLE [!db.pre!]ecms_newstemp AS(SELECT id,classid,newstime,truetime,lastdotime,havehtml FROM [!db.pre!]ecms_news);  ALTER TABLE `[!db.pre!]ecms_newstemp` ADD COLUMN `checked` tinyint(1) not null DEFAULT 0 AFTER `classid`;  ALTER TABLE `[!db.pre!]ecms_newstemp` add primary key (id);  alter table [!db.pre!]ecms_news_index rename to [!db.pre!]ecms_news_indexbak;  alter table [!db.pre!]ecms_newstemp rename to [!db.pre!]ecms_news_index;  ALTERTABLE`[!db.pre!]ecms_news_index`CHANGE`id``id`INT(10)NOTNULLAUTO_INCREMENT;  alter table [!db.pre!]ecms_news_index add index(classid);  alter table [!db.pre!]ecms_news_index add index(checked);  alter table [!db.pre!]ecms_news_index add index(newstime);  alter table [!db.pre!]ecms_news_index add index(truetime);  update [!db.pre!]ecms_news_index set checked=1;