Update app.py

app.py

@@ -207,6 +207,10 @@ def point(img, object):
 
 @spaces.GPU(duration=10)
 def localized_query(img, x, y, question):
+    if img is None:
+        yield "", {"text": "", "entities": []}, gr.update(visible=False, value=None)
+        return
+
     w, h = img.size
     x, y = x * w, y * h
     img_clone = img.copy()