Update app.py

app.py

@@ -123,7 +123,7 @@ def rag_chain(llm, prompt, db):
 def wandb_trace(rag_option, prompt, completion, chain, err_msg, start_time_ms, end_time_ms):
     if (str(err_msg) != ""):
         result = ""
-    else if (rag_option == RAG_OFF):
+    elif (rag_option == RAG_OFF):
         result = completion.text
     else:
         result = completion["result"]