条件が一致しなくても例外がでないように変更

popcorn/Assets/MyGame/Scenes/Main/Scripts/MissionManager.cs

@@ -84,7 +84,7 @@ public class MissionManager : MonoBehaviour
             case MissionCondition.SaltSalesCount:
                 return gameData.GetTotalSalesByFlavor(2);
             default:
-                throw new ArgumentOutOfRangeException();
+                return 0;
         }
     }