Error mounting NAS


I am trying to mount my local NAS in Home Assistant so I can dump files on it like downloads from BitTorrent, camera captures and more.

I created an automation that launches a shell_command on startup, but since it wasn’t working
I’m trying to test by typing this command in SSH & Web terminal to get more informations:

mount -t cifs -o vers=3.0,noserverino,username=admin,password=admin, "//" /media/nas

With this command I’m getting an error message that says: "mount: mounting // on /media/nas failed: Not Supported"

I tried vers=1.0 and vers=2.1, but I get the same result.

I’m a total noob when it comes to networking stuff so if anyone could help it would be much appreciated!