fixit

main.py

@@ -37,10 +37,10 @@ async def callback(request: Request):
     print(body)
     data = json.loads(body)
     value = data['entry'][0]['changes'][0]['value']
-    message = value['messages'][0]
     print("VALUE: " + str(value))
     print("MESSAGE:" + str(message))
-    if 'from' in message:
+    if 'messages' in value:
+        message = value['messages'][0]
         phone_num = message['from']
         mesg_body = value['messages'][0]['text']['body']
         documents = vectorstore.similarity_search(mesg_body)