Update chain_app.py

chain_app.py

@@ -834,7 +834,7 @@ async def main(message: cl.Message):
         # Send the concatenated content as a message
         await cl.Message(content=complete_content).send()
 
-    elif chat_profile == 'gemma-9B':
+    elif chat_profile == 'gemma2-9B':
         completion = groq_client.chat.completions.create(
             model="gemma-9b-it",
             messages=[