diff --git a/hwe/sammo/Betting.php b/hwe/sammo/Betting.php
index f2829ef6..83305a7e 100644
--- a/hwe/sammo/Betting.php
+++ b/hwe/sammo/Betting.php
@@ -26,7 +26,7 @@ class Betting
         return Json::encode($bettingType);
     }
 
-    public function purifyBettingKey(array $bettingType): array
+    public function purifyBettingKey(array $bettingType, bool $ignoreOver = false): array
     {
         $selectCnt = $this->info->selectCnt;
         sort($bettingType, SORT_NUMERIC);
@@ -39,7 +39,7 @@ class Betting
             throw new \InvalidArgumentException('올바르지 않은 값이 있습니다.(0 미만)' . print_r($bettingType, true));
         }
 
-        if (Util::array_last($bettingType) >= count($this->info->candidates)) {
+        if (!$ignoreOver && Util::array_last($bettingType) >= count($this->info->candidates)) {
             throw new \InvalidArgumentException('올바르지 않은 값이 있습니다.(초과)' . print_r($bettingType, true));
         }
 
diff --git a/hwe/sammo/Event/Action/FinishNationBetting.php b/hwe/sammo/Event/Action/FinishNationBetting.php
index 6cecba38..214fee48 100644
--- a/hwe/sammo/Event/Action/FinishNationBetting.php
+++ b/hwe/sammo/Event/Action/FinishNationBetting.php
@@ -49,10 +49,20 @@ class FinishNationBetting extends \sammo\Event\Action
         }
 
         $winnerTypes = [];
+
+        $notInBettingWinner = 0;
         foreach ($winnerNations as $winnerNationID) {
-            $winnerTypes[] = $nationIDMap[$winnerNationID];
+            if(key_exists($winnerNationID, $nationIDMap)){
+                $winnerTypes[] = $nationIDMap[$winnerNationID];
+            }
+            else{
+                //혹시라도 베팅 시점 이후에 생성된 국가라 없을 수 있다.
+                $winnerTypes[] = count($nationIDMap) + $notInBettingWinner;
+                $notInBettingWinner += 1;
+            }
         }
-        $winnerTypes = $bettingHelper->purifyBettingKey($winnerTypes);
+
+        $winnerTypes = $bettingHelper->purifyBettingKey($winnerTypes, $notInBettingWinner > 0);
 
         $bettingHelper->giveReward($winnerTypes);
         $logger = new ActionLogger(0, 0, $env['year'], $env['month']);