diff --git a/docs/changelog.md b/docs/changelog.md
index 57ab3caa..2e6a71f7 100644
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -1,6 +1,12 @@
 # 更新记录
 通过访问 https://www.dedebiz.com/git 获取完整更新记录
 
+## v6.0.4
+- 兼容PHP8.0；
+- 修正已知存在的安全问题；
+- 优化系统管理后台界面；
+- 修正sqlite3下的错误；
+
 ## v6.0.0
 - 调整DedeCMS目录结构，将原有include中外部访问的内容迁移出去；
 - 修正已知存在的安全问题；
diff --git a/src/dede/article_keywords_select.php b/src/dede/article_keywords_select.php
index fb7dd78b..a1efb9b8 100755
--- a/src/dede/article_keywords_select.php
+++ b/src/dede/article_keywords_select.php
@@ -17,7 +17,7 @@ $f = RemoveXSS($f);
 
 if (empty($keywords)) $keywords = "";
 
-$sql = "SELECT * FROM #@__keywords ORDER BY rank DESC";
+$sql = "SELECT * FROM `#@__keywords` ORDER BY `rank` DESC";
 $dlist = new DataListCP();
 $dlist->SetTemplate(DEDEADMIN."/templets/article_keywords_select.htm");
 $dlist->pageSize = 300;
diff --git a/src/dede/member_rank.php b/src/dede/member_rank.php
index 4eea9f43..e036a162 100755
--- a/src/dede/member_rank.php
+++ b/src/dede/member_rank.php
@@ -29,7 +29,7 @@ if ($dopost == 'save') {
                 $query = "UPDATE `#@__arcrank` SET membername='$name',money='$money',`rank`='$rank',scores='$scores' WHERE id='$id' ";
             }
         } else {
-            $query = "DELETE FROM `#@__arcrank` WHERE id='$id' AND rank<>10";
+            $query = "DELETE FROM `#@__arcrank` WHERE id='$id' AND `rank`<>10";
         }
         if ($query != '') $dsql->ExecuteNoneQuery($query);
     }
@@ -42,7 +42,7 @@ if ($dopost == 'save') {
     echo "<script> alert('成功更新会员等级表'); </script>";
 }
 if ($dopost == 'del') {
-    $dsql->ExecuteNoneQuery("DELETE FROM `#@__arcrank` WHERE id='$id' AND rank<>10");
+    $dsql->ExecuteNoneQuery("DELETE FROM `#@__arcrank` WHERE id='$id' AND `rank`<>10");
     ShowMsg("删除成功", "member_rank.php");
     exit();
 }
diff --git a/src/include/dedesqlite.class.php b/src/include/dedesqlite.class.php
index 2f8c448a..b6d416cf 100755
--- a/src/include/dedesqlite.class.php
+++ b/src/include/dedesqlite.class.php
@@ -29,6 +29,9 @@ $dsql = $dsqlitete = $db = new DedeSqlite(FALSE);
 if (!defined('MYSQL_BOTH')) {
     define('MYSQL_BOTH', MYSQLI_BOTH);
 }
+if (!defined('MYSQL_ASSOC')) {
+    define('MYSQL_ASSOC', SQLITE3_ASSOC);
+}
 class DedeSqlite
 {
     var $linkID;
@@ -122,13 +125,13 @@ class DedeSqlite
     //为了防止采集等需要较长运行时间的程序超时，在运行这类程序时设置系统等待和交互时间
     function SetLongLink()
     {
-        @mysqli_query("SET interactive_timeout=3600, wait_timeout=3600 ;", $this->linkID);
+        // @mysqli_query("SET interactive_timeout=3600, wait_timeout=3600 ;", $this->linkID);
     }
 
     //获得错误描述
     function GetError()
     {
-        $str = mysqli_error($this->linkID);
+        $str = $dsqlite->lastErrorMsg();
         return $str;
     }
 
@@ -291,7 +294,7 @@ class DedeSqlite
     }
 
     //执行一个SQL语句,返回前一条记录或仅返回一条记录
-    function GetOne($sql = '', $acctype = MYSQLI_ASSOC)
+    function GetOne($sql = '', $acctype = SQLITE3_ASSOC)
     {
         global $dsqlite;
         if (!$dsqlite->isInit) {