diff --git a/hwe/func.php b/hwe/func.php
index f6d46f32..430b8a6e 100644
--- a/hwe/func.php
+++ b/hwe/func.php
@@ -1054,10 +1054,10 @@ function increaseRefresh($type = "", $cnt = 1)
         'ip' => $ip,
         'date' => $date,
         'path' => "refresh",
-        'arg' => JSON::encode([
+        'arg' => Json::encode([
             'type' => $type,
         ]),
-        'aux' => JSON::encode([
+        'aux' => Json::encode([
             'generalID' => $generalID,
             'generalName' => $session->generalName,
             'userName' => $session->userName,
diff --git a/hwe/func_command.php b/hwe/func_command.php
index eebd0ca2..74cdf284 100644
--- a/hwe/func_command.php
+++ b/hwe/func_command.php
@@ -213,7 +213,7 @@ function _setGeneralCommand(GeneralCommand $command, array $turnList):void {
 
     $db->update('general_turn', [
         'action'=>$commandName,
-        'arg'=>Json::encode($arg, JSON::EMPTY_ARRAY_IS_DICT),
+        'arg'=>Json::encode($arg, Json::EMPTY_ARRAY_IS_DICT),
         'brief'=>$brief
     ], 'general_id = %i AND turn_idx IN %li', $generalID, $turnList);
 }
@@ -233,7 +233,7 @@ function _setNationCommand(NationCommand $command, array $turnList):void  {
 
     $db->update('nation_turn', [
         'action'=>$commandName,
-        'arg'=>Json::encode($arg, JSON::EMPTY_ARRAY_IS_DICT),
+        'arg'=>Json::encode($arg, Json::EMPTY_ARRAY_IS_DICT),
         'brief'=>$brief
     ], 'nation_id = %i AND officer_level = %i AND turn_idx IN %li', $nationID, $officerLevel, $turnList);
 }
diff --git a/hwe/func_gamerule.php b/hwe/func_gamerule.php
index fdfae574..462c2048 100644
--- a/hwe/func_gamerule.php
+++ b/hwe/func_gamerule.php
@@ -899,7 +899,7 @@ function checkEmperior()
         'tiger' => $tigerstr,
         'eagle' => $eaglestr,
         'gen' => $gen,
-        'history' => JSON::encode($nationHistory),
+        'history' => Json::encode($nationHistory),
         'aux' => $statGeneral['aux']
     ]);
 
diff --git a/hwe/j_select_npc.php b/hwe/j_select_npc.php
index d30b1435..13005ce4 100644
--- a/hwe/j_select_npc.php
+++ b/hwe/j_select_npc.php
@@ -36,7 +36,7 @@ if(!$member){
 }
 
 $userNick = $member['name'];
-$memberPenalty = JSON::decode($member['penalty'] ?? '{}');
+$memberPenalty = Json::decode($member['penalty'] ?? '{}');
 $penalty = array_merge($memberPenalty['any'] ?? [], $memberPenalty[DB::prefix()] ?? []);
 
 $pickResult = $db->queryFirstField('SELECT pick_result FROM select_npc_token WHERE `owner`=%i AND `valid_until`>=%s', $userID, $now);
diff --git a/hwe/sammo/API/General/Join.php b/hwe/sammo/API/General/Join.php
index 33343b13..9251cc47 100644
--- a/hwe/sammo/API/General/Join.php
+++ b/hwe/sammo/API/General/Join.php
@@ -155,7 +155,7 @@ class Join extends \sammo\BaseAPI
             return "잘못된 접근입니다!!!";
         }
 
-        $memberPenalty = JSON::decode($member['penalty'] ?? "{}");
+        $memberPenalty = Json::decode($member['penalty'] ?? "{}");
         $penalty = array_merge($memberPenalty['any'] ?? [], $memberPenalty[DB::prefix()] ?? []);
 
         $db = DB::db();
diff --git a/hwe/sammo/API/Message/SendMessage.php b/hwe/sammo/API/Message/SendMessage.php
index b89d0115..0b3b450e 100644
--- a/hwe/sammo/API/Message/SendMessage.php
+++ b/hwe/sammo/API/Message/SendMessage.php
@@ -172,7 +172,7 @@ class SendMessage extends \sammo\BaseAPI
       return '장수가 없습니다.';
     }
 
-    $penalty = JSON::decode($me['penalty'] ?? '{}');
+    $penalty = Json::decode($me['penalty'] ?? '{}');
 
     $limitState = checkLimit($me['refresh_score']);
     if ($limitState >= 2) {
diff --git a/hwe/sammo/API/Nation/GeneralList.php b/hwe/sammo/API/Nation/GeneralList.php
index dcf25d37..928340ce 100644
--- a/hwe/sammo/API/Nation/GeneralList.php
+++ b/hwe/sammo/API/Nation/GeneralList.php
@@ -313,7 +313,7 @@ class GeneralList extends \sammo\BaseAPI
         foreach ($rawGeneralList as $rawGeneral) {
             //General 생성?
             if (key_exists('aux', $rawGeneral)) {
-                $rawGeneral['aux'] = \sammo\JSON::decode($rawGeneral['aux']);
+                $rawGeneral['aux'] = \sammo\Json::decode($rawGeneral['aux']);
             }
 
             $item = [];
diff --git a/src/sammo/APIHelper.php b/src/sammo/APIHelper.php
index 82a83ab2..ea5b2096 100644
--- a/src/sammo/APIHelper.php
+++ b/src/sammo/APIHelper.php
@@ -93,8 +93,8 @@ class APIHelper
                     'ip' => $ip,
                     'date' => $date,
                     'path' => $actionPath,
-                    'arg' => JSON::encode($filteredArgs),
-                    'aux' => JSON::encode([
+                    'arg' => Json::encode($filteredArgs),
+                    'aux' => Json::encode([
                         'result' => false,
                         'state' => 'validate',
                         'reason' => $validateResult
@@ -123,8 +123,8 @@ class APIHelper
                     'ip' => $ip,
                     'date' => $date,
                     'path' => $actionPath,
-                    'arg' => JSON::encode($filteredArgs),
-                    'aux' => JSON::encode([
+                    'arg' => Json::encode($filteredArgs),
+                    'aux' => Json::encode([
                         'result' => false,
                         'state' => 'launch',
                         'reason' => $result
@@ -139,8 +139,8 @@ class APIHelper
                     'ip' => $ip,
                     'date' => $date,
                     'path' => $actionPath,
-                    'arg' => JSON::encode($filteredArgs),
-                    'aux' => JSON::encode([
+                    'arg' => Json::encode($filteredArgs),
+                    'aux' => Json::encode([
                         'result' => false,
                         'state' => 'launch',
                         'reason' => $recoveryType->info(),
@@ -168,8 +168,8 @@ class APIHelper
                             'ip' => $ip,
                             'date' => $date,
                             'path' => $actionPath,
-                            'arg' => JSON::encode($filteredArgs),
-                            'aux' => JSON::encode([
+                            'arg' => Json::encode($filteredArgs),
+                            'aux' => Json::encode([
                                 'result' => true,
                                 'state' => 'cache_not_modified',
                             ]),
@@ -183,8 +183,8 @@ class APIHelper
                         'ip' => $ip,
                         'date' => $date,
                         'path' => $actionPath,
-                        'arg' => JSON::encode($filteredArgs),
-                        'aux' => JSON::encode([
+                        'arg' => Json::encode($filteredArgs),
+                        'aux' => Json::encode([
                             'result' => true,
                             'state' => 'cache_not_modified',
                         ]),
@@ -199,8 +199,8 @@ class APIHelper
                     'ip' => $ip,
                     'date' => $date,
                     'path' => $actionPath,
-                    'arg' => JSON::encode($filteredArgs),
-                    'aux' => JSON::encode([
+                    'arg' => Json::encode($filteredArgs),
+                    'aux' => Json::encode([
                         'result' => true,
                         'state' => 'success_simple',
                         'set_cache' => $setCache,
@@ -216,8 +216,8 @@ class APIHelper
                 'ip' => $ip,
                 'date' => $date,
                 'path' => $actionPath,
-                'arg' => JSON::encode($filteredArgs),
-                'aux' => JSON::encode([
+                'arg' => Json::encode($filteredArgs),
+                'aux' => Json::encode([
                     'result' => true,
                     'state' => 'success_complex',
                     'set_cache' => $setCache,
@@ -226,6 +226,7 @@ class APIHelper
             $result['result'] = $result['result'] ?? true;
             Json::die($result, $setCache ? 0 : Json::NO_CACHE);
         } catch (\Exception $e) {
+            $session = Session::getInstance();
             $errMsg = $e->getMessage();
             $errTrace = $e->getTraceAsString();
             $logDB->insert('api_log', [
@@ -233,8 +234,8 @@ class APIHelper
                 'ip' => $ip,
                 'date' => $date,
                 'path' => $actionPath,
-                'arg' => JSON::encode($filteredArgs),
-                'aux' => JSON::encode([
+                'arg' => Json::encode($filteredArgs),
+                'aux' => Json::encode([
                     'result' => false,
                     'state' => 'error_exception',
                     'errMsg' => $errMsg,
@@ -244,6 +245,7 @@ class APIHelper
             Json::dieWithReason("{$errMsg}\n{$errTrace}");
         } catch (\Throwable $e) {
             logExceptionByCustomHandler($e, false);
+            $session = Session::getInstance();
             $errMsg = $e->getMessage();
             $errTrace = $e->getTraceAsString();
             $logDB->insert('api_log', [
@@ -251,8 +253,8 @@ class APIHelper
                 'ip' => $ip,
                 'date' => $date,
                 'path' => $actionPath,
-                'arg' => JSON::encode($filteredArgs),
-                'aux' => JSON::encode([
+                'arg' => Json::encode($filteredArgs),
+                'aux' => Json::encode([
                     'result' => false,
                     'state' => 'error_throwable',
                     'errMsg' => $errMsg,
@@ -261,14 +263,15 @@ class APIHelper
             ]);
             Json::dieWithReason("{$errMsg}\n{$errTrace}");
         } catch (mixed $e) {
+            $session = Session::getInstance();
             $errStr = strval($e);
             $logDB->insert('api_log', [
                 'user_id' => $session->userID ?? 0,
                 'ip' => $ip,
                 'date' => $date,
                 'path' => $actionPath,
-                'arg' => JSON::encode($filteredArgs),
-                'aux' => JSON::encode([
+                'arg' => Json::encode($filteredArgs),
+                'aux' => Json::encode([
                     'result' => false,
                     'state' => 'error_mixed',
                     'errMsg' => $errStr,