diff --git a/Million Buyer/MainForm.cs b/Million Buyer/MainForm.cs
index 729a8d5..40471dd 100644
--- a/Million Buyer/MainForm.cs	
+++ b/Million Buyer/MainForm.cs	
@@ -223,11 +223,13 @@ namespace Million_Buyer
                 orderList = orderList.Distinct().ToList();
                 this.BeginInvoke(new Action(delegate ()
                 {
-                    tl_RealtimeOrder.Nodes.Clear();
-                    foreach (var item in orderList)
+                    try
                     {
-                        tl_RealtimeOrder.AppendNode(new object[]
+                        tl_RealtimeOrder.Nodes.Clear();
+                        foreach (var item in orderList)
                         {
+                            tl_RealtimeOrder.AppendNode(new object[]
+                            {
                             item.Uuid,
                             item.CoinFullName,
                             item.Side,
@@ -236,13 +238,18 @@ namespace Million_Buyer
                             item.Volume,
                             item.ExecutedVolume,
                             item.CreateOrderTime.ToString("yyyy-MM-dd HH:mm:ss")
-                        }, null);
-                    }
+                            }, null);
+                        }
 
-                    var tempData = orderList.Select(t => t.Uuid).ToList();
-                    tempData.AddRange(buyList.Select(t => t.Uuid).ToList());
-                    buyCycleCount = tempData.Distinct().ToList().Count;
-                    lb_BuyMarketCount.Text = tempData.Distinct().ToList().Count.ToString();
+                        var tempData = orderList.Select(t => t.Uuid).ToList();
+                        tempData.AddRange(buyList.Select(t => t.Uuid).ToList());
+                        buyCycleCount = tempData.Distinct().ToList().Count;
+                        lb_BuyMarketCount.Text = tempData.Distinct().ToList().Count.ToString();
+                    }
+                    catch (Exception e)
+                    {
+                        InsertLog("Order Thread Error : " + e.Message);
+                    }
                 }));
 
                 //1초에 한번씩 부르게 처리
@@ -466,10 +473,18 @@ namespace Million_Buyer
                                     //grid 처리 구매항목, 구매 가격, 구매 개수, 구매시점 
                                     this.BeginInvoke(new Action(delegate ()
                                     {
-                                        tl_BuyList.AppendNode(new object[]
-                                        {buyData.ConGoodsData.CoinFullName, recentlyData.BuyValue, recentlyData.BuyCount, time.ToString("yyyy-MM-dd HH:mm:ss") }, null);
+                                        try {
+                                            tl_BuyList.AppendNode(new object[]
+                                            {
+                                                buyData.ConGoodsData.CoinFullName, recentlyData.BuyValue, recentlyData.BuyCount, time.ToString("yyyy-MM-dd HH:mm:ss")
+                                            }, null);
 
-                                        lb_BuyMarketCount.Text = buyList.Count.ToString();
+                                            lb_BuyMarketCount.Text = buyList.Count.ToString();
+                                        }
+                                        catch (Exception e)
+                                        {
+                                            InsertLog("Buy 후 Grid Insert Error : " + e.Message);
+                                        }
                                     }));
                                     sw.Stop();
                                     if (sw.Elapsed.TotalSeconds > 1)
@@ -535,21 +550,23 @@ namespace Million_Buyer
                                 InsertLog(buyItem.ConGoodsData.CoinFullName + " Market Data 판매 DateTime : " + time.ToString("yyyy-MM-dd HH:mm:ss"));
                                 this.BeginInvoke(new Action(delegate ()
                                 {
-                                    //Grid 처리
-                                    TreeListNode buyNode = null;
-
-                                    foreach (TreeListNode node in tl_BuyList.Nodes)
+                                    try
                                     {
-                                        if (node.GetValue("BuyMarket").ToString() == buyItem.ConGoodsData.CoinFullName)
+                                        //Grid 처리
+                                        TreeListNode buyNode = null;
+
+                                        foreach (TreeListNode node in tl_BuyList.Nodes)
                                         {
-                                            buyNode = node;
-                                            break;
+                                            if (node.GetValue("BuyMarket").ToString() == buyItem.ConGoodsData.CoinFullName)
+                                            {
+                                                buyNode = node;
+                                                break;
+                                            }
                                         }
-                                    }
 
-                                    var moneyVal = (sellVal * (1 - 0.0015) - buyCandleData.BuyValue * (1 - 0.0015)) * result.SellCount;
+                                        var moneyVal = (sellVal * (1 - 0.0015) - buyCandleData.BuyValue * (1 - 0.0015)) * result.SellCount;
 
-                                    tl_Result.AppendNode(new object[] {
+                                        tl_Result.AppendNode(new object[] {
                                         buyNode.GetValue("BuyMarket"),
                                         buyNode.GetValue("BuyValue"),
                                         buyNode.GetValue("BuyCount"),
@@ -561,9 +578,14 @@ namespace Million_Buyer
                                         moneyVal
                                     }, null);
 
-                                    tl_BuyList.Nodes.Remove(buyNode);
+                                        tl_BuyList.Nodes.Remove(buyNode);
 
-                                    lb_BuyMarketCount.Text = buyList.Count.ToString();
+                                        lb_BuyMarketCount.Text = buyList.Count.ToString();
+                                    }
+                                    catch (Exception e)
+                                    {
+                                        InsertLog("Sell Logic Grid Error" + e.Message);
+                                    }
                                 }));
                                 if (sw.Elapsed.TotalSeconds > 1)
                                     InsertLog("Sell 계산 로직 : " + sw.Elapsed.ToString());
@@ -572,7 +594,7 @@ namespace Million_Buyer
                         #endregion
                     }
                     cnt++;
-                    if (cnt % 60 == 0)
+                    if (cnt % 100000 == 0)
                     {
                         InsertLog("Scanning......" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss"));
                         cnt = 0;
diff --git a/Million/Manager/CalculateManager.cs b/Million/Manager/CalculateManager.cs
index 02ca3ec..fead813 100644
--- a/Million/Manager/CalculateManager.cs
+++ b/Million/Manager/CalculateManager.cs
@@ -636,7 +636,9 @@ namespace Million.Manager
                     //최초로 매수, 매도 진행 시 사전 조건과의 Tick거리를 예외할 수 있어야 함
                     //OverlapValue는 사야할 데이터, beforeIndiValue는 사전 데이터
                     var beforeIndiValue = parent.IndicatorDic[subKey].value;
-                    if (!GetTickDifferenceCount(overlapData, beforeIndiValue, 3)) return;
+                    if (beforeIndiValue == 0) continue;
+                        
+                    if (!GetTickDifferenceCount(overlapData, beforeIndiValue, 3)) continue;
 
                     //최초 시점이 아닐 경우                    
                     if ((subManagement != null && subManagement[coinFullName]) || !firstFlag)
@@ -668,7 +670,7 @@ namespace Million.Manager
         /// <returns></returns>
         public static bool GetTickDifferenceCount(double standardValue, double compareValue, int tickCount)
         {
-            var bigData = standardValue > compareValue ? standardValue : compareValue;
+            var bigData = standardValue> compareValue ? standardValue : compareValue;
             var smallData = standardValue < compareValue ? standardValue : compareValue;
 
             var calBigData = OrderbookManager.GetAskPrice(bigData, false);