Can it survive?

I recently returned home after a trip and realised I'd left my terrarium exposed to the sun. I'm worried its gone past the point of no return.

I've trimmed the dead and moldy leaves and what is in the two images below is what remains. Does it look saveable and if so how? P.s. is that white stuff mold you can see on the middle of the exterior shot, what should I do about it?

Thanks for any help, I had previously been really happy with how long I had managed to keep the terrarium alive.