diff --git a/lib/dao/dao.class.php b/lib/dao/dao.class.php
index a029bf23d2..ad120989d0 100755
--- a/lib/dao/dao.class.php
+++ b/lib/dao/dao.class.php
@@ -114,6 +114,14 @@ class dao
      */
     public $method;
 
+    /**
+     * The sql code of need repair table.
+     * 
+     * @var string
+     * @access public
+     */
+    public $repairCode = '|1034|1035|1194|1195|1459|';
+
     /**
      * The queries executed. Every query will be saved in this array.
      * 
@@ -269,7 +277,7 @@ class dao
         }
         catch (PDOException $e) 
         {
-            $this->app->triggerError($e->getMessage() . "<p>The sql is: $sql</p>", __FILE__, __LINE__, $exit = true);
+            $this->sqlError($e);
         }
 
         $sql  = 'SELECT FOUND_ROWS() as recTotal;';
@@ -500,7 +508,7 @@ class dao
         }
         catch (PDOException $e) 
         {
-            $this->app->triggerError($e->getMessage() . "<p>The sql is: $sql</p>", __FILE__, __LINE__, $exit = true);
+            $this->sqlError($e);
         }
     }
 
@@ -541,7 +549,7 @@ class dao
             }
             catch (PDOException $e) 
             {
-                $this->app->triggerError($e->getMessage() . "<p>The sql is: $sql</p>", __FILE__, __LINE__, $exit = true);
+                $this->sqlError($e);
             }
 
             $pager->setRecTotal($row->recTotal);
@@ -572,7 +580,7 @@ class dao
         }
         catch (PDOException $e) 
         {
-            $this->app->triggerError($e->getMessage() . "<p>The sql is: $sql</p>", __FILE__, __LINE__, $exit = true);
+            $this->sqlError($e);
         }
     }
 
@@ -768,7 +776,7 @@ class dao
             }
             catch (PDOException $e) 
             {
-                $this->app->triggerError($e->getMessage() . "<p>The sql is: $sql</p>", __FILE__, __LINE__, $exit = true);
+                $this->sqlError($e);
             }
         }
         else
@@ -981,7 +989,7 @@ class dao
         }
         catch (PDOException $e) 
         {
-            $this->app->triggerError($e->getMessage() . "<p>The sql is: $sql</p>", __FILE__, __LINE__, $exit = true);
+            $this->sqlError($e);
         }
 
         foreach($rawFields as $rawField)
@@ -1028,6 +1036,28 @@ class dao
         }
         return $fields;
     }
+
+    /**
+     * Process SQL error by code.
+     * 
+     * @param  object    $exception 
+     * @access public
+     * @return void
+     */
+    public function sqlError($exception)
+    {
+        $errorInfo = $exception->errorInfo;
+        $errorCode = $errorInfo[1];
+        $errorMsg  = $errorInfo[2];
+        $message   = $exception->getMessage();
+        if(strpos($this->repairCode, "|$errorCode|") !== false or
+            ($errorCode == '1016' and strpos($errorMsg, 'errno: 145') !== false))
+        {
+            $message .=  ' ' . $this->lang->repairTable;
+        }
+        $sql = $this->sqlobj->get();
+        $this->app->triggerError($message . "<p>The sql is: $sql</p>", __FILE__, __LINE__, $exit = true);
+    }
 }
 
 /**
diff --git a/module/common/lang/en.php b/module/common/lang/en.php
index 1b31e2f3f2..a430e7d08f 100644
--- a/module/common/lang/en.php
+++ b/module/common/lang/en.php
@@ -61,6 +61,7 @@ $lang->addFiles     = 'Add Files';
 $lang->files        = 'Files ';
 $lang->pasteText    = 'Paste text';
 $lang->timeout      = 'Timed out, please check the network, or retry!';
+$lang->repairTable  = 'The table may be damaged, you can perform bin/checkdb on the command line to try to repair!';
 $lang->duplicate    = '%s has the same title';
 $lang->unfold       = '+';
 $lang->fold         = '-';
diff --git a/module/common/lang/zh-cn.php b/module/common/lang/zh-cn.php
index bc49a03104..2674c6aae0 100644
--- a/module/common/lang/zh-cn.php
+++ b/module/common/lang/zh-cn.php
@@ -61,6 +61,7 @@ $lang->addFiles     = '上传了附件 ';
 $lang->files        = '附件 ';
 $lang->pasteText    = '粘贴文本 ';
 $lang->timeout      = '连接超时，请检查网络环境，或重试！';
+$lang->repairTable  = '数据库表可能损坏，需要修复，可以在命令行执行bin目录下的checkdb尝试修复！';
 $lang->duplicate    = '已有相同标题的%s';
 $lang->unfold       = '+';
 $lang->fold         = '-';
diff --git a/module/extension/css/common.css b/module/extension/css/common.css
index 0036253ef1..38df857d73 100644
--- a/module/extension/css/common.css
+++ b/module/extension/css/common.css
@@ -1,2 +1,3 @@
 .alert-link:hover {text-decoration: underline;}
 .alert {width: 100%; display: table;}
+code{padding-left:0px;}
diff --git a/module/extension/model.php b/module/extension/model.php
index 3f128a62b1..6ea7b12b3a 100644
--- a/module/extension/model.php
+++ b/module/extension/model.php
@@ -480,9 +480,9 @@ class extensionModel extends model
         }
 
         if($return->errors) $return->result = 'fail';
-        $return->mkdirCommands = str_replace('/', DIRECTORY_SEPARATOR, $return->mkdirCommands);
+        $return->mkdirCommands = '<code>' . str_replace('/', DIRECTORY_SEPARATOR, $return->mkdirCommands) . '</code>';
         $return->errors .= $this->lang->extension->executeCommands . $return->mkdirCommands;
-        if(PHP_OS == 'Linux') $return->errors .= $return->chmodCommands;
+        if(PHP_OS == 'Linux') $return->errors .= '<code>' . $return->chmodCommands . '</code>';
         return $return;
     }
 
@@ -707,6 +707,7 @@ class extensionModel extends model
         $return = new stdclass();
         $return->result = 'ok';
         $return->error  = '';
+        $ignoreCode     = '|1050|1060|1062|1091|1169|';
 
         $dbFile = $this->getDBFile($extension, $method);
         if(!file_exists($dbFile)) return $return;
@@ -724,9 +725,11 @@ class extensionModel extends model
             {
                 $this->dbh->query($sql);
             }
-            catch (PDOException $e) 
+            catch(PDOException $e) 
             {
-                $return->error .= '<p>' . $e->getMessage() . "<br />THE SQL IS: $sql</p>";
+                $errorInfo = $e->errorInfo;
+                $errorCode = $errorInfo[1];
+                if(strpos($ignoreCode, "|$errorCode|") === false) $return->error .= '<p>' . $e->getMessage() . "<br />THE SQL IS: $sql</p>";
             }
         }
         if($return->error) $return->result = 'fail';
diff --git a/module/mail/control.php b/module/mail/control.php
index 237ed78a6d..e69d38b4c3 100755
--- a/module/mail/control.php
+++ b/module/mail/control.php
@@ -161,7 +161,7 @@ class mail extends control
 
         if($_POST)
         {
-            $this->mail->send($this->post->to, $this->lang->mail->subject, $this->lang->mail->content,"", true);
+            $this->mail->send($this->post->to, $this->lang->mail->subject, $this->lang->mail->content, "", true);
             if($this->mail->isError())
             {
                 $this->view->error = $this->mail->getError();
diff --git a/module/upgrade/model.php b/module/upgrade/model.php
index 2c591b8149..bd38384936 100644
--- a/module/upgrade/model.php
+++ b/module/upgrade/model.php
@@ -622,6 +622,7 @@ class upgradeModel extends model
     public function execSQL($sqlFile)
     {
         $mysqlVersion = $this->loadModel('install')->getMysqlVersion();
+        $ignoreCode   = '|1050|1060|1062|1091|1169|';
 
         /* Read the sql file to lines, remove the comment lines, then join theme by ';'. */
         $sqls = explode("\n", file_get_contents($sqlFile));
@@ -652,7 +653,9 @@ class upgradeModel extends model
             }
             catch (PDOException $e) 
             {
-                self::$errors[] = $e->getMessage() . "<p>The sql is: $sql</p>";
+                $errorInfo = $e->errorInfo;
+                $errorCode = $errorInfo[1];
+                if(strpos($ignoreCode, "|$errorCode|") === false) self::$errors[] = $e->getMessage() . "<p>The sql is: $sql</p>";
             }
         }
     }