How do i start Coding Escape game?

A friend and I wanted to play Escape Code, but when we try to play we can just get a URL, but we don`t know how to select the game and start it. This might be a silly question, but we are stucked :frowning: Thanks

this is the URL of the Coding Escape:

Still in closed beta. It will be soon accessible to everyone and the waiting list removed.