@Sylvain152 There's been a couple times that guests didn't respond to my messages at all and they were due to arrive the next day. I contacted Airbnb and they were able to reach the guest and tell them they needed to respond to my messages. One time it turned out the guest had been really busy, the other time the guest wasn't receiving any notifications from Airbnb, so it wasn't her fault at all.
Airbnb will try to get in touch with the guest for you.
But I also don't understand- you've had 3 days to replace the window glass, it's not a big complicated job, unless it's some huge picture window.