diff --git a/app.py b/app.py
index beececc..afadb6e 100644
--- a/app.py
+++ b/app.py
@@ -72,8 +72,12 @@ def worker(id,source,region=None,stream=False):
                 if not cap.isOpened():
                     print("Error opening video stream..")
                     cap = cv2.VideoCapture(source)
+                    time.sleep(1)
                     if not cap.isOpened():
                         print("Error opening video stream...")
+                        time.sleep(3)
+                        if not cap.isOpened():
+                            print("Error opening video stream....")
                         break
                 continue
             result = model.track(frame,show=False,stream=False,persist=True,device=int(id)%4)
@@ -81,7 +85,11 @@ def worker(id,source,region=None,stream=False):
             detections = sv.Detections.from_yolov8(result)
             if result.boxes.id is not None:
                 detections.tracker_id = result.boxes.id.cpu().numpy().astype(int)
-            detections = detections[(detections.tracker_id != None)]
+            else:
+                detections.tracker_id = np.array([])
+                detections.conf = np.array([])
+                detections.xyxy=np.empty((0, 4), dtype=np.float32)
+            # detections = detections[(detections.tracker_id != None)]
             
             count += 1
             names = {}