Page Will Not Open

Hi,

I have bought a reseller product and they sent me the link to my email for the template. After trying to open the link this is what it says.

Uh oh, it’s gone!

The domain is connected to a Bubble application, but the application’s plan does not offer a custom domain.
If you are the owner of this app, please upgrade the app plan with Bubble to restore the connection

Do I have to upgrade my account?

Here is the link I am trying to open.

fto-system-964.bubbleapps.io

!upupup