diff --git a/bbs/register_form_update.php b/bbs/register_form_update.php
index 7cc1039f4..55fc56700 100644
--- a/bbs/register_form_update.php
+++ b/bbs/register_form_update.php
@@ -75,7 +75,10 @@ if ($w == '' || $w == 'u') {
     if ($w=='') {
         if ($msg = exist_mb_id($mb_id))     alert($msg);
 
-        if (!exist_mb_id($mb_recommend))    alert("추천인이 존재하지 않습니다.");
+        if ($config['cf_use_recommend']) {
+            if (!exist_mb_id($mb_recommend))    
+                alert("추천인이 존재하지 않습니다.");
+        }
 
         if (strtolower($mb_id) == strtolower($mb_recommend)) {
             alert('본인을 추천할 수 없습니다.');
diff --git a/bbs/write_comment_update.php b/bbs/write_comment_update.php
index f4fdc3956..4ab8f50e0 100644
--- a/bbs/write_comment_update.php
+++ b/bbs/write_comment_update.php
@@ -81,7 +81,7 @@ if ($w == 'c') // 댓글 입력
                     where wr_id = '$comment_id' ";
         $reply_array = sql_fetch($sql);
         if (!$reply_array['wr_id'])
-            alert('답변할 댓글가 없습니다.\\n\\n답변하는 동안 댓글가 삭제되었을 수 있습니다.');
+            alert('답변할 댓글이 없습니다.\\n\\n답변하는 동안 댓글이 삭제되었을 수 있습니다.');
 
         $tmp_comment = $reply_array['wr_comment'];
 
diff --git a/plugin/syndi/include/include.bbs.delete.php b/plugin/syndi/include/include.bbs.delete.php
index 19aa2c417..a25e50bcb 100644
--- a/plugin/syndi/include/include.bbs.delete.php
+++ b/plugin/syndi/include/include.bbs.delete.php
@@ -28,7 +28,7 @@ $subject_row = sql_fetch($sql);
 
 $_link = './bbs/board.php?bo_table=%s&wr_id=%s';
 $_sql = "insert into {$g4['syndi_log_table']} (content_id, bbs_id, title, link_alternative, delete_date) values('%s','%s','%s','%s','%s')";
-sql_query(sprintf($_sql, $row['wr_id'], $bo_table, addslashes($subject_row['wr_subject']), sprintf($_link, $bo_table, $row['wr_id']), date('YmdHis')));
+sql_query(sprintf($_sql, $row['wr_id'], $bo_table, addslashes($subject_row['wr_subject']), sprintf($_link, $bo_table, $row['wr_id']), date('YmdHis')), false);
 
 $oPing = new SyndicationPing;
 $oPing->setId(SyndicationHandler::getTag('channel', $bo_table));
diff --git a/plugin/syndi/include/include.bbs.delete_all.php b/plugin/syndi/include/include.bbs.delete_all.php
index 248e9a7d4..9361a3e85 100644
--- a/plugin/syndi/include/include.bbs.delete_all.php
+++ b/plugin/syndi/include/include.bbs.delete_all.php
@@ -27,7 +27,7 @@ $subject_row = sql_fetch($sql);
 
 $_link = './bbs/board.php?bo_table=%s&wr_id=%s';
 $_sql = "insert into {$g4['syndi_log_table']} (content_id, bbs_id, title, link_alternative, delete_date) values('%s','%s','%s','%s','%s')";
-sql_query(sprintf($_sql, $row['wr_id'], $bo_table, addslashes($subject_row['wr_subject']), sprintf($_link, $bo_table, $row['wr_id']), date('YmdHis')));
+sql_query(sprintf($_sql, $row['wr_id'], $bo_table, addslashes($subject_row['wr_subject']), sprintf($_link, $bo_table, $row['wr_id']), date('YmdHis')), false);
 
 $oPing = new SyndicationPing;
 $oPing->setId(SyndicationHandler::getTag('channel', $bo_table));
diff --git a/skin/member/basic/register_form.skin.php b/skin/member/basic/register_form.skin.php
index 6948f4b65..0abf94bdf 100644
--- a/skin/member/basic/register_form.skin.php
+++ b/skin/member/basic/register_form.skin.php
@@ -214,7 +214,7 @@ if (!defined('_GNUBOARD_')) exit; // 개별 페이지 접근 불가
 <?php if ($w == "" && $config['cf_use_recommend']) {  ?>
 <tr>
     <th scope="row"><label for="reg_mb_recommend">추천인아이디</label></th>
-    <td><input type="text" name="mb_recommend" id="reg_mb_recommend" class="frm_input"></td>
+    <td><input type="text" name="mb_recommend" id="reg_mb_recommend" class="frm_input" required></td>
 </tr>
 <?php }  ?>