Even on error have return two output to compatible with two gradio components

app.py

@@ -116,7 +116,7 @@ class SimilarityModel:
         try:
             assert isinstance(tools_data, list) and all(isinstance(d, dict) for d in tools_data)
         except AssertionError:
-            return tools_data
+            return tools_data, [{"Error": tools_data}]
 
         # Create a unique key for caching based on the tools data
         tools_cache_key = json.dumps(tools_data, sort_keys=True)