Fix retry flag

app.py

@@ -133,8 +133,9 @@ def parse_from_category(category, extracted_text):
     print("\tProcessed text")
     try:
         information = chain.output_parser.parse_with_prompt(answer, formatted_prompt)
+        if information:
+            information['retry'] = True
         information = information.json() if information else {}
-        information['retry'] = True
     except OutputParserException as e:
         information = {
             "error": "Unable to parse chatbot output",