Update app.py

app.py

@@ -65,7 +65,7 @@ def fill_masked(text: str, model_name: str, top_k: int):
                     "token": cand["token_str"]
                 })
             res_dict[mask_num] = formatted
-    elif
+    elif isinstance(results, list):
         formatted = []
             for cand in mas_results:
                 formatted.append({