windows PC客户端能登陆，但发不出消息。日志显示：[ExtractParams] Invalid params length

您的回复让我好像大概知道问题在哪了，为了给后来者看我先把日志贴出来：

/p> in lib\base\dao\dao.class.php on line 1381, last called by lib\base\dao\dao.class.php on line 761 through function sqlError.
 in D:\nextcloud\zentaopms\framework\base\router.class.php on line 2729 when visiting 

17:23:32 Undefined index: link in D:\nextcloud\zentaopms\module\common\model.php on line 1000 when visiting /?zentaosid=9hjg272r2v7v1m3ljkkardf1f1

17:23:32 Undefined index: link in D:\nextcloud\zentaopms\module\common\model.php on line 1000 when visiting /?zentaosid=9hjg272r2v7v1m3ljkkardf1f1

17:23:32 Undefined index: link in D:\nextcloud\zentaopms\module\common\model.php on line 1000 when visiting /index.php?m=index&f=index&zentaosid=9hjg272r2v7v1m3ljkkardf1f1&t=html&tid=vrdxqbmy

17:23:32 Undefined index: link in D:\nextcloud\zentaopms\module\common\model.php on line 1000 when visiting /index.php?m=index&f=index&zentaosid=9hjg272r2v7v1m3ljkkardf1f1&t=html&tid=vrdxqbmy

17:23:54 ERROR: SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry 'normal' for key 'zt_im_message.mtype' <p>The sql is: INSERT INTO `zt_im_message` SET `gid` = '679b632a-d2b0-48e1-b12b-fc6543caded8',`cgid` = '4e538386-ba68-1042-d364-e073cda62704',`user` = '43',`content` = '11',`data` = '',`type` = 'normal',`contentType` = 'text',`date` = '2023-06-30 17:23:54',`deleted` = '0',`index` = '160'</p> in lib\base\dao\dao.class.php on line 1381, last called by lib\base\dao\dao.class.php on line 761 through function sqlError.
 in D:\nextcloud\zentaopms\framework\base\router.class.php on line 2729 when visiting 

已经解决了，该问题我推测是我们服务器突然断电导致mysql数据库异常。

zt_im_message这张表的type字段我设置了下唯一约束，然后保存。保存失败了。然后聊天系统突然就好了。

因为技术能力有限，不知道具体原因。