diff --git a/common.php b/common.php
index 3481744fa..48113ba98 100644
--- a/common.php
+++ b/common.php
@@ -271,6 +271,7 @@ if( !function_exists('shop_check_is_pay_page') ){
             $mobile_dir.'/'.$shop_dir.'/lg/returnurl.php',
             $mobile_dir.'/'.$shop_dir.'/lg/xpay_approval.php',
             $mobile_dir.'/'.$shop_dir.'/kcp/order_approval_form.php',
+            $shop_dir.'/kakaopay/inicis_kk_return.php',     // 이니시스 카카오페이 (SIRK 로 시작하는 아이디 전용)
         );
 
         $server_script_name = str_replace('\\', '/', $_SERVER['SCRIPT_NAME']);
diff --git a/mobile/shop/inicis/pay_approval.php b/mobile/shop/inicis/pay_approval.php
index 367e339f3..5befa5b30 100644
--- a/mobile/shop/inicis/pay_approval.php
+++ b/mobile/shop/inicis/pay_approval.php
@@ -20,7 +20,7 @@ if( ! $p_req_url || !preg_match('/^https\:\/\//i', $p_req_url)){
 $sql = " select * from {$g5['g5_shop_order_data_table']} where od_id = '$oid' ";
 $row = sql_fetch($sql);
 
-$data = unserialize(base64_decode($row['dt_data']));
+$data = isset($row['dt_data']) ? unserialize(base64_decode($row['dt_data'])) : array();
 
 if(isset($data['pp_id']) && $data['pp_id']) {
     $order_action_url = G5_HTTPS_MSHOP_URL.'/personalpayformupdate.php';
diff --git a/mobile/shop/kcp/order_approval_form.php b/mobile/shop/kcp/order_approval_form.php
index 0f561ca6a..deb72826c 100644
--- a/mobile/shop/kcp/order_approval_form.php
+++ b/mobile/shop/kcp/order_approval_form.php
@@ -232,7 +232,7 @@ if($enc_data != '' && $enc_info != '' && $tran_cd != '') {
     $sql = " select * from {$g5['g5_shop_order_data_table']} where od_id = '$ordr_idxx' ";
     $row = sql_fetch($sql);
 
-    $data = unserialize(base64_decode($row['dt_data']));
+    $data = isset($row['dt_data']) ? unserialize(base64_decode($row['dt_data'])) : array();
 
     if(isset($data['pp_id']) && $data['pp_id']) {
         $order_action_url = G5_HTTPS_MSHOP_URL.'/personalpayformupdate.php';
diff --git a/mobile/shop/lg/returnurl.php b/mobile/shop/lg/returnurl.php
index 9f6cd7e55..fb7d9195c 100644
--- a/mobile/shop/lg/returnurl.php
+++ b/mobile/shop/lg/returnurl.php
@@ -25,7 +25,7 @@ $LGD_OID          = $payReqMap['LGD_OID'];
 $sql = " select * from {$g5['g5_shop_order_data_table']} where od_id = '$LGD_OID' ";
 $row = sql_fetch($sql);
 
-$data = unserialize(base64_decode($row['dt_data']));
+$data = isset($row['dt_data']) ? unserialize(base64_decode($row['dt_data'])) : array();
 
 if(isset($data['pp_id']) && $data['pp_id']) {
     $order_action_url = G5_HTTPS_MSHOP_URL.'/personalpayformupdate.php';
diff --git a/mobile/shop/orderformupdate.php b/mobile/shop/orderformupdate.php
index 14e4daf40..ad0d12442 100644
--- a/mobile/shop/orderformupdate.php
+++ b/mobile/shop/orderformupdate.php
@@ -344,6 +344,7 @@ if ($od_settle_case == "무통장")
         $od_status      = '입금';
         $od_receipt_time = G5_TIME_YMDHIS;
     }
+    $tno = $od_receipt_time = $od_app_no = '';
 }
 else if ($od_settle_case == "계좌이체")
 {
@@ -395,6 +396,7 @@ else if ($od_settle_case == "가상계좌")
     $od_deposit_name    = $depositor;
     $pg_price           = $amount;
     $od_misu            = $i_price - $od_receipt_price;
+    $od_receipt_time    = '';
 }
 else if ($od_settle_case == "휴대폰")
 {
diff --git a/shop/inicis/inistdpay_result.php b/shop/inicis/inistdpay_result.php
index 2f850ee51..96feac3a0 100644
--- a/shop/inicis/inistdpay_result.php
+++ b/shop/inicis/inistdpay_result.php
@@ -16,7 +16,7 @@ try {
     //#####################
     // 인증이 성공일 경우만
     //#####################
-    if (strcmp('0000', $_REQUEST['resultCode']) == 0) {
+    if (isset($_REQUEST['resultCode']) && strcmp('0000', $_REQUEST['resultCode']) == 0) {
 
         //############################################
         // 1.전문 필드 값 설정(***가맹점 개발수정***)
@@ -100,13 +100,13 @@ try {
             $sql = " select * from {$g5['g5_shop_order_data_table']} where od_id = '$oid' ";
             $row = sql_fetch($sql);
 
-            $data = unserialize(base64_decode($row['dt_data']));
+            $data = isset($row['dt_data']) ? unserialize(base64_decode($row['dt_data'])) : array();
 
             if(isset($data['pp_id']) && $data['pp_id']) {
                 $page_return_url  = G5_SHOP_URL.'/personalpayform.php?pp_id='.$data['pp_id'];
             } else {
                 $page_return_url  = G5_SHOP_URL.'/orderform.php';
-                if($_SESSION['ss_direct'])
+                if(get_session('ss_direct'))
                     $page_return_url .= '?sw_direct=1';
             }
 
diff --git a/shop/kakaopay/kakaopay_result.php b/shop/kakaopay/kakaopay_result.php
index f7f333662..ee0508a2e 100644
--- a/shop/kakaopay/kakaopay_result.php
+++ b/shop/kakaopay/kakaopay_result.php
@@ -6,10 +6,10 @@ if( isset($_POST['P_NOTI']) ){
     $sql = " select * from {$g5['g5_shop_order_data_table']} where od_id = '".preg_replace("/\s+/", "", $_POST['P_NOTI'])."' ";
     $row = sql_fetch($sql);
 
-    if ( base64_encode(base64_decode($row['dt_data'], true)) === $row['dt_data']){
+    if (isset($row['dt_data']) && (base64_encode(base64_decode($row['dt_data'], true)) === $row['dt_data'])){
         $data = unserialize(base64_decode($row['dt_data']));
     } else {
-        $data = unserialize($row['dt_data']);
+        $data = isset($row['dt_data']) ? unserialize($row['dt_data']) : array();
     }
 
     if( isset($data['is_inicis_mobile_kakaopay']) && $data['is_inicis_mobile_kakaopay'] == 'mobile' ){
diff --git a/shop/kakaopay/mobile_pay_approval.php b/shop/kakaopay/mobile_pay_approval.php
index 13b34b8d1..f587d83ba 100644
--- a/shop/kakaopay/mobile_pay_approval.php
+++ b/shop/kakaopay/mobile_pay_approval.php
@@ -12,8 +12,8 @@ set_session('P_TID',  '');
 set_session('P_AMT',  '');
 set_session('P_HASH', '');
 
-$oid  = trim($_REQUEST['P_NOTI']);
-$p_req_url = trim($_REQUEST['P_REQ_URL']);
+$oid  = isset($_REQUEST['P_NOTI']) ? trim($_REQUEST['P_NOTI']) : '';
+$p_req_url = isset($_REQUEST['P_REQ_URL']) ? trim($_REQUEST['P_REQ_URL']) : '';
 
 if( ! $p_req_url || !preg_match('/^https\:\/\//i', $p_req_url)){
     alert("잘못된 요청 URL 입니다.");
@@ -22,10 +22,10 @@ if( ! $p_req_url || !preg_match('/^https\:\/\//i', $p_req_url)){
 $sql = " select * from {$g5['g5_shop_order_data_table']} where od_id = '$oid' ";
 $row = sql_fetch($sql);
 
-if ( base64_encode(base64_decode($row['dt_data'], true)) === $row['dt_data']){
+if (isset($row['dt_data']) && (base64_encode(base64_decode($row['dt_data'], true)) === $row['dt_data'])){
     $data = unserialize(base64_decode($row['dt_data']));
 } else {
-    $data = unserialize($row['dt_data']);
+    $data = isset($row['dt_data']) ? unserialize($row['dt_data']) : array();
 }
 
 if(isset($data['pp_id']) && $data['pp_id']) {
@@ -34,7 +34,7 @@ if(isset($data['pp_id']) && $data['pp_id']) {
 } else {
     $order_action_url = G5_HTTPS_MSHOP_URL.'/orderformupdate.php';
     $page_return_url  = G5_SHOP_URL.'/orderform.php';
-    if($_SESSION['ss_direct'])
+    if(get_session('ss_direct'))
         $page_return_url .= '?sw_direct=1';
 
     // 장바구니가 비어있는가?
@@ -151,12 +151,12 @@ if(isset($data['pp_id']) && !empty($data['pp_id'])) {
         $_POST['P_TYPE'] = $PAY['P_TYPE'];
         $_POST['P_AUTH_DT'] = $PAY['P_AUTH_DT'];
         $_POST['P_AUTH_NO'] = $PAY['P_AUTH_NO'];
-        $_POST['P_HPP_CORP'] = $PAY['P_HPP_CORP'];
-        $_POST['P_APPL_NUM'] = $PAY['P_APPL_NUM'];
-        $_POST['P_VACT_NUM'] = $PAY['P_VACT_NUM'];
-        $_POST['P_VACT_NAME'] = iconv_utf8($PAY['P_VACT_NAME']);
-        $_POST['P_VACT_BANK'] = $BANK_CODE[$PAY['P_VACT_BANK_CODE']];
-        $_POST['P_CARD_ISSUER'] = $CARD_CODE[$PAY['P_CARD_ISSUER_CODE']];
+        $_POST['P_HPP_CORP'] = isset($PAY['P_HPP_CORP']) ? $PAY['P_HPP_CORP'] : '';
+        $_POST['P_APPL_NUM'] = isset($PAY['P_APPL_NUM']) ? $PAY['P_APPL_NUM'] : '';
+        $_POST['P_VACT_NUM'] = isset($PAY['P_VACT_NUM']) ? $PAY['P_VACT_NUM'] : '';
+        $_POST['P_VACT_NAME'] = isset($PAY['P_VACT_NAME']) ? iconv_utf8($PAY['P_VACT_NAME']) : '';
+        $_POST['P_VACT_BANK'] = (isset($PAY['P_VACT_BANK_CODE']) && isset($BANK_CODE[$PAY['P_VACT_BANK_CODE']])) ? $BANK_CODE[$PAY['P_VACT_BANK_CODE']] : '';
+        $_POST['P_CARD_ISSUER'] = (isset($PAY['P_CARD_ISSUER_CODE']) && isset($CARD_CODE[$PAY['P_CARD_ISSUER_CODE']])) ? $CARD_CODE[$PAY['P_CARD_ISSUER_CODE']] : '';
         $_POST['P_UNAME'] = iconv_utf8($PAY['P_UNAME']);
 
         include_once( G5_MSHOP_PATH.'/personalpayformupdate.php' );
@@ -184,12 +184,12 @@ if(isset($data['pp_id']) && !empty($data['pp_id'])) {
     $P_TYPE = $_POST['P_TYPE'] = $PAY['P_TYPE'];
     $P_AUTH_DT = $_POST['P_AUTH_DT'] = $PAY['P_AUTH_DT'];
     $P_AUTH_NO = $_POST['P_AUTH_NO'] = $PAY['P_AUTH_NO'];
-    $P_HPP_CORP = $_POST['P_HPP_CORP'] = $PAY['P_HPP_CORP'];
-    $P_APPL_NUM = $_POST['P_APPL_NUM'] = $PAY['P_APPL_NUM'];
-    $P_VACT_NUM = $_POST['P_VACT_NUM'] = $PAY['P_VACT_NUM'];
-    $P_VACT_NAME = $_POST['P_VACT_NAME'] = iconv_utf8($PAY['P_VACT_NAME']);
-    $P_VACT_BANK = $_POST['P_VACT_BANK'] = $BANK_CODE[$PAY['P_VACT_BANK_CODE']];
-    $P_CARD_ISSUER = $_POST['P_CARD_ISSUER'] = $CARD_CODE[$PAY['P_CARD_ISSUER_CODE']];
+    $P_HPP_CORP = $_POST['P_HPP_CORP'] = isset($PAY['P_HPP_CORP']) ? $PAY['P_HPP_CORP'] : '';
+    $P_APPL_NUM = $_POST['P_APPL_NUM'] = isset($PAY['P_APPL_NUM']) ? $PAY['P_APPL_NUM'] : '';
+    $P_VACT_NUM = $_POST['P_VACT_NUM'] = isset($PAY['P_VACT_NUM']) ? $PAY['P_VACT_NUM'] : '';
+    $P_VACT_NAME = $_POST['P_VACT_NAME'] = isset($PAY['P_VACT_NAME']) ? iconv_utf8($PAY['P_VACT_NAME']) : '';
+    $P_VACT_BANK = $_POST['P_VACT_BANK'] = (isset($PAY['P_VACT_BANK_CODE']) && isset($BANK_CODE[$PAY['P_VACT_BANK_CODE']])) ? $BANK_CODE[$PAY['P_VACT_BANK_CODE']] : '';
+    $P_CARD_ISSUER = $_POST['P_CARD_ISSUER'] = (isset($PAY['P_CARD_ISSUER_CODE']) && isset($CARD_CODE[$PAY['P_CARD_ISSUER_CODE']])) ? $CARD_CODE[$PAY['P_CARD_ISSUER_CODE']] : '';
     $P_UNAME = $_POST['P_UNAME'] = iconv_utf8($PAY['P_UNAME']);
 
     $check_keys = array('od_name', 'od_tel', 'od_pwd', 'od_hp', 'od_zip', 'od_addr1', 'od_addr2', 'od_addr3', 'od_addr_jibeon', 'od_email', 'ad_default', 'ad_subject', 'od_hope_date', 'od_b_name', 'od_b_tel', 'od_b_hp', 'od_b_zip', 'od_b_addr1', 'od_b_addr2', 'od_b_addr3', 'od_b_addr_jibeon', 'od_memo', 'od_settle_case', 'max_temp_point', 'od_temp_point', 'od_send_cost', 'od_send_cost2', 'od_bank_account', 'od_deposit_name', 'od_test', 'od_ip');
diff --git a/shop/kakaopay/orderform.1.php b/shop/kakaopay/orderform.1.php
index f7fcbcfaa..1ea853970 100644
--- a/shop/kakaopay/orderform.1.php
+++ b/shop/kakaopay/orderform.1.php
@@ -41,7 +41,7 @@ if($default['de_tax_flag_use']) {
 
 <input type="hidden" name="version" value="1.0" >
 <input type="hidden" name="mid" value="<?php echo $default['de_kakaopay_mid']; ?>">
-<input type="hidden" name="goodname" value="<?php echo $goods; ?>">
+<input type="hidden" name="goodname" value="<?php echo isset($goods) ? get_text($goods) : ''; ?>">
 <input type="hidden" name="oid" value="<?php echo $od_id; ?>">
 <input type="hidden" name="price" value="<?php echo $tot_price; ?>" >
 <input type="hidden" name="currency" value="WON" >
diff --git a/shop/kakaopay/pc_pay_result.php b/shop/kakaopay/pc_pay_result.php
index add7a2e5f..f32823b4a 100644
--- a/shop/kakaopay/pc_pay_result.php
+++ b/shop/kakaopay/pc_pay_result.php
@@ -16,7 +16,7 @@ try {
     //#####################
     // 인증이 성공일 경우만
     //#####################
-    if (strcmp('0000', $_REQUEST['resultCode']) == 0) {
+    if (isset($_REQUEST['resultCode']) && strcmp('0000', $_REQUEST['resultCode']) == 0) {
 
         //############################################
         // 1.전문 필드 값 설정(***가맹점 개발수정***)
@@ -100,13 +100,13 @@ try {
             $sql = " select * from {$g5['g5_shop_order_data_table']} where od_id = '$oid' ";
             $row = sql_fetch($sql);
 
-            $data = unserialize(base64_decode($row['dt_data']));
+            $data = isset($row['dt_data']) ? unserialize(base64_decode($row['dt_data'])) : array();
 
             if(isset($data['pp_id']) && $data['pp_id']) {
                 $page_return_url  = G5_SHOP_URL.'/personalpayform.php?pp_id='.$data['pp_id'];
             } else {
                 $page_return_url  = G5_SHOP_URL.'/orderform.php';
-                if($_SESSION['ss_direct'])
+                if(get_session('ss_direct'))
                     $page_return_url .= '?sw_direct=1';
             }
 
@@ -124,9 +124,9 @@ try {
                 $app_time   = $resultMap['applDate'].$resultMap['applTime'];
                 $pay_method = $resultMap['payMethod'];
                 $pay_type   = $PAY_METHOD[$pay_method];
-                $depositor  = $resultMap['VACT_InputName'];
+                $depositor  = isset($resultMap['VACT_InputName']) ? $resultMap['VACT_InputName'] : '';
                 $commid     = '';
-                $mobile_no  = $resultMap['HPP_Num'];
+                $mobile_no  = isset($resultMap['HPP_Num']) ? $resultMap['HPP_Num'] : '';
                 $app_no     = $resultMap['applNum'];
                 $card_name  = $CARD_CODE[$resultMap['CARD_Code']];
                 switch($pay_type) {