Correct run_test return values

app.py

@@ -33,8 +33,10 @@ def run_test( profile: gr.OAuthProfile | None):
         
     try:
         answer = agent("What kind of techno is Kyber, from former lead developer of VLC ?")
+        return answer, None
     except Exception as e:
         print(f"Error running agent a test run: {e}")
+        return f"Error running agent a test run: {e}", None