Rlaunch works qlaunch does not work

Hello everybody,
I am facing a kind of strange problem. On a new cluster, I can use lpad command to see the ready fws. I can run VASP with rlaunch singleshot command but when I try qlaunch singleshot (after changing my_qadapter.yaml) I received to following error message:
pymongo.errors.ServerSelectionTimeoutError: cluster0-shard-00-02-(removed).mongodb.net:27017: [Errno 113] No route to host,cluster0-shard-00-01-(removed).mongodb.net:27017: [Errno 113] No route to host,cluster0-shard-00-00-(removed).mongodb.net:27017: [Errno 113] No route to host

I appreciate your support.
Kind regards,

Hi Hossein,

Can you paste the commands you are running for qlaunch and rlaunch?