diff --git a/src/system/common.func.php b/src/system/common.func.php
index 15c932df..83bd66f7 100755
--- a/src/system/common.func.php
+++ b/src/system/common.func.php
@@ -409,13 +409,13 @@ function IndexActive($idx)
 //是否是HTTPS
 function IsSSL()
 {
-    if ($_SERVER['HTTPS'] && ('1' == $_SERVER['HTTPS'] || 'on' == strtolower($_SERVER['HTTPS']))) {
+    if (@$_SERVER['HTTPS'] && ('1' == $_SERVER['HTTPS'] || 'on' == strtolower($_SERVER['HTTPS']))) {
         return true;
-    } elseif ('https' == $_SERVER['REQUEST_SCHEME']) {
+    } elseif ('https' == @$_SERVER['REQUEST_SCHEME']) {
         return true;
     } elseif ('443' == $_SERVER['SERVER_PORT']) {
         return true;
-    } elseif ('https' == $_SERVER['HTTP_X_FORWARDED_PROTO']) {
+    } elseif ('https' == @$_SERVER['HTTP_X_FORWARDED_PROTO']) {
         return true;
     }
     return false;
diff --git a/src/system/database/dedesqlite.class.php b/src/system/database/dedesqlite.class.php
index e0f6e36c..c26e6fbc 100755
--- a/src/system/database/dedesqlite.class.php
+++ b/src/system/database/dedesqlite.class.php
@@ -367,7 +367,7 @@ class DedeSqlite
     function GetVersion($isformat = TRUE)
     {
         global $dsqlite;
-        if (!$dsqlite->isInit) {
+        if (!@$dsqlite->isInit) {
             $this->Init($this->pconnect);
         }
         if ($dsqlite->isClose) {
diff --git a/src/system/helpers/channelunit.helper.php b/src/system/helpers/channelunit.helper.php
index f9eaea47..886b89ae 100755
--- a/src/system/helpers/channelunit.helper.php
+++ b/src/system/helpers/channelunit.helper.php
@@ -476,9 +476,9 @@ function MakeOneTag(&$dtp, &$refObj, $parfield = 'Y')
             if (DEBUG_LEVEL == TRUE) {
                 $queryTime = ExecTime() - $ttt1;
                 if (PHP_SAPI === 'cli') {
-                    echo '标签：'.$tagname.'载入花费时间：'.$queryTime."\r\n";
+                    echo '标签：'.$tagname.' 载入花费时间：'.$queryTime."\r\n";
                 } else {
-                    echo DedeAlert('标签：'.$tagname.'载入花费时间：'.$queryTime, ALERT_WARNING);
+                    echo DedeAlert('标签：'.$tagname.' 载入花费时间：'.$queryTime, ALERT_WARNING);
                 }
                 
             }
diff --git a/src/system/taglib/channelartlist.lib.php b/src/system/taglib/channelartlist.lib.php
index 0e18aced..b8ce9f28 100755
--- a/src/system/taglib/channelartlist.lib.php
+++ b/src/system/taglib/channelartlist.lib.php
@@ -59,11 +59,13 @@ function lib_channelartlist(&$ctag, &$refObj)
         $pv = new PartView($typeids[$i]['id']);
         $pv->Fields['typeurl'] = GetOneTypeUrlA($typeids[$i]);
         //栏目高亮
-        if ($typeids[$i]['id'] == $refObj->TypeLink->TypeInfos['id'] || $typeids[$i]['id'] == $refObj->TypeLink->TypeInfos['reid'] || $typeids[$i]['id'] == $refObj->TypeLink->TypeInfos['topid'] || $typeids[$i]['id'] == GetTopid($refObj->TypeLink->TypeInfos['id']) )
-        {
-            $pv->Fields['currentstyle'] = $currentstyle ? $currentstyle : 'current';
-        } else {
-            $pv->Fields['currentstyle'] = '';
+        if (isset($refObj->TypeLink->TypeInfos)) {
+            if ($typeids[$i]['id'] == $refObj->TypeLink->TypeInfos['id'] || $typeids[$i]['id'] == $refObj->TypeLink->TypeInfos['reid'] || $typeids[$i]['id'] == $refObj->TypeLink->TypeInfos['topid'] || $typeids[$i]['id'] == GetTopid($refObj->TypeLink->TypeInfos['id']) )
+            {
+                $pv->Fields['currentstyle'] = $currentstyle ? $currentstyle : 'current';
+            } else {
+                $pv->Fields['currentstyle'] = '';
+            }
         }
         $pv->SetTemplet($innertext,'string');
         $artlist .= $pv->GetResult();