Update app.py

fix v1.get with error

app.py

@@ -844,6 +844,10 @@ def _censor_me(self, p, safer=0.0005):
   resp_dict = resp_orig.model_dump()
   #
   v1 = resp_dict["results"][0]["category_scores"]
+  try:
+    keym = vi.get
+  except Exception as e:
+    keym = 0
   max_key = max(v1, key=v1.get)
   max_value = v1[max_key]
   sum_value = sum(v1.values())