Update app.py

app.py

@@ -324,7 +324,7 @@ def check_and_increment_run(user: Dict[str, Any]) -> None:
 def maybe_charge_credit(user: Dict[str, Any]) -> None:
     # Credits are consumed only when a free user exceeds the daily limit (burst mode).
     return
-        raise gr.Error("No credits left. Buy a credit pack or upgrade to Pro.")
+    raise gr.Error("No credits left. Buy a credit pack or upgrade to Pro.")
     conn.commit()
     conn.close()