What isn't wrong? The girl couldn't really comprehend the true extent of the damage, and the TARDIS has no words for it anyway. So she settles on a worn out "Too much," and then hurries towards the exit leading into a dimly lit corridor.

"I will take you to the console room. That is the most stable place left. And perhaps you can escape." She's having trouble discerning why the doors to the outside are locked, if it was the Doctor or safety protocols or her own pain clamping them shut, but she'll do what she can to get everyone out. If they make it to the console room in the first place.