Should crickets be dead for frog?

[Ishka]

1)Its a 40 by 40 terrarium with about a height of 50.
2) I am using natural gravel.
3) I am measuring temperature with a digital thermometer
4) About 20 in the enclosure and water 15 in the gravel.
5) I have a lamp but the glob heats up fast and h=gets very hot so i have to turn it off so it can cool down. Are light globes like this: Infrared Heat Globe 75w ES ReptileOne Melbourne's cleanest and healthiest pet and supplies shop fire hazards if left on for 12 hours?
6) Frog is in bedroom and 3 walls of its enclosure are coverd.
7) Frog looks skinny, but has a normal color. I mist twice a day to keep her hydrated.

[Ishka]

Frog is now eating