Update app.py

app.py

@@ -95,7 +95,7 @@ def main():
             f.write(image_file.getbuffer())
 
         # Load the YOLO models
-        model = YOLO("chessDetection3d")  # Replace with your trained model weights file
+        model = YOLO("chessDetection3d.pt")  # Replace with your trained model weights file
 
         
         seg_model = YOLO("segmentation.pt")