Update app.py

app.py

@@ -804,7 +804,7 @@ def submit_message(prompt, prompt_template, temperature, max_tokens, context_len
         print("Page_content:", page_content)
         metadata = document.metadata  # Use dot notation to access an attribute
         print("Metadata:", metadata)
-        similarity_score = document.state.query_similarity_score  # Use dot notation to access an attribute
+        similarity_score = document.state['query_similarity_score']  
         print("Similarity_score:", similarity_score)