the door is open
Hay un coche con sangre dentro y la puerta está abierta.
There's a car with blood inside and the door is open.
— Mystic River (2003)
The door is open now.
Adelante, pase usted, la puerta está abierta y lo estamos esperando.
Come in, the door is open and we're waiting for you.
Entra, la puerta está abierta.
Come in, the door is open.
Eso explica por qué la puerta está abierta.
That explains why the door is open.