diff --git a/pkg/bbgo/serialmarketdatastore.go b/pkg/bbgo/serialmarketdatastore.go
index f660e49fa..0b4e321ac 100644
--- a/pkg/bbgo/serialmarketdatastore.go
+++ b/pkg/bbgo/serialmarketdatastore.go
@@ -87,8 +87,11 @@ func (store *SerialMarketDataStore) tickerProcessor(ctx context.Context) {
 	duration := store.MinInterval.Duration()
 	relativeTime := time.Now().UnixNano() % int64(duration)
 	waitTime := int64(duration) - relativeTime
-	ch := time.After(time.Duration(waitTime))
-	<-ch
+	select {
+	case <-time.After(time.Duration(waitTime)):
+	case <-ctx.Done():
+		return
+	}
 	intervalCloseTicker := time.NewTicker(duration)
 	defer intervalCloseTicker.Stop()
 
diff --git a/pkg/strategy/drift/strategy.go b/pkg/strategy/drift/strategy.go
index cf4287c87..6c5e97243 100644
--- a/pkg/strategy/drift/strategy.go
+++ b/pkg/strategy/drift/strategy.go
@@ -857,7 +857,6 @@ func (s *Strategy) Run(ctx context.Context, orderExecutor bbgo.OrderExecutor, se
 			var buffer bytes.Buffer
 			if err := canvas.Render(chart.PNG, &buffer); err != nil {
 				log.WithError(err).Errorf("cannot render indicators in drift")
-				reply.Message(fmt.Sprintf("[error] cannot render indicators in drift: %v", err))
 				return
 			}
 			bbgo.SendPhoto(&buffer)
@@ -870,7 +869,6 @@ func (s *Strategy) Run(ctx context.Context, orderExecutor bbgo.OrderExecutor, se
 			var buffer bytes.Buffer
 			if err := canvas.Render(chart.PNG, &buffer); err != nil {
 				log.WithError(err).Errorf("cannot render pnl in drift")
-				reply.Message(fmt.Sprintf("[error] cannot render pnl in drift: %v", err))
 				return
 			}
 			bbgo.SendPhoto(&buffer)
@@ -883,7 +881,6 @@ func (s *Strategy) Run(ctx context.Context, orderExecutor bbgo.OrderExecutor, se
 			var buffer bytes.Buffer
 			if err := canvas.Render(chart.PNG, &buffer); err != nil {
 				log.WithError(err).Errorf("cannot render cumpnl in drift")
-				reply.Message(fmt.Sprintf("[error] canot render cumpnl in drift: %v", err))
 				return
 			}
 			bbgo.SendPhoto(&buffer)
diff --git a/pkg/strategy/elliottwave/draw.go b/pkg/strategy/elliottwave/draw.go
index 6378839dc..fa1427424 100644
--- a/pkg/strategy/elliottwave/draw.go
+++ b/pkg/strategy/elliottwave/draw.go
@@ -22,7 +22,6 @@ func (s *Strategy) InitDrawCommands(store *bbgo.SerialMarketDataStore, profit, c
 			var buffer bytes.Buffer
 			if err := canvas.Render(chart.PNG, &buffer); err != nil {
 				log.WithError(err).Errorf("cannot render indicators in ewo")
-				reply.Message(fmt.Sprintf("[error] cannot render indicators in ewo: %v", err))
 				return
 			}
 			bbgo.SendPhoto(&buffer)
@@ -34,7 +33,6 @@ func (s *Strategy) InitDrawCommands(store *bbgo.SerialMarketDataStore, profit, c
 			var buffer bytes.Buffer
 			if err := canvas.Render(chart.PNG, &buffer); err != nil {
 				log.WithError(err).Errorf("cannot render pnl in ewo")
-				reply.Message(fmt.Sprintf("[error] cannot render pnl in ewo: %v", err))
 				return
 			}
 			bbgo.SendPhoto(&buffer)
@@ -46,7 +44,6 @@ func (s *Strategy) InitDrawCommands(store *bbgo.SerialMarketDataStore, profit, c
 			var buffer bytes.Buffer
 			if err := canvas.Render(chart.PNG, &buffer); err != nil {
 				log.WithError(err).Errorf("cannot render cumpnl in ewo")
-				reply.Message(fmt.Sprintf("[error] canot render cumpnl in ewo: %v", err))
 				return
 			}
 			bbgo.SendPhoto(&buffer)