Why in my scene is it different in my game?

I'm trying to learn Unity by making a basemap with a player.

Yesterday, when I pressed the play button I could test the game perfectly, but today it doesn't work, I don't think I touched anything...

This is what I see from the Game tab:

How can I show in the Game tab what I see in the Scene tab? I mean see the map and the player. I can only see the Canvas right now...

Edit: translated into Spanish, I didn't even notice the .es domain