diff --git a/app.py b/app.py
index 19c57d0..b346522 100644
--- a/app.py
+++ b/app.py
@@ -61,10 +61,11 @@ def worker(id,source,region=None,stream=False):
         region = 10
     else:
         region = int(region)
+    print("start loading model...",id,source,region)
     model = YOLO('./best.pt')
+    print("start loaded  model!!!")
     balls = {}
     count = 0
-    print(source)
     try:
         cap = cv2.VideoCapture(source)
         if not cap.isOpened():