Well I don't think it will ever be normal.
Hopefully the blood supply to the rest of her foot hasn't been compromised.
If it has it will get infected and need to be amputated.
If you have a vet that can treat the toad that would be the best thing.
Keep a close eye on the foot if turns a dark color not like the rest of the skin.
then the foot will need to be amputated.
Or it might just fall off on its own

I would hold off until you get some crickets.
She doesn't look like one day without food will hurt her.
Has she had any Bowel movements.

also I would change the paper towel every day and the water.
Well water is ok for now.
but for long term use I would use a water treatment for fish.

Also it looks like the break is at the ankle not at the knee joint.