This just suddenly came on? The toes have not been like that?
At 8 months old....
I would try wrapping the foot to get the toes straightened out so the top of the toes don't get sores, that may help her walk a bit better.
You can give her 1/2tablet of human B-Complex vitamins for a couple of weeks too. Or if you have something like Poultry Cell, give her a direct dose every day for 1 week. (1cc per 3 pounds of weight).
Riboflavin (B2) deficiency is a possibility, but since she doesn't seem to indicate pain, then I'm thinking the foot is numb(?) Could be that she has Marek's or some type of nerve damage.
The Bumblefoot does not look too bad. I would try to treating that with soaking in epsom salts, dry well, then apply Clear (Decolorized) Iodine. Wrap, then the next day see if the scab is loose so you can remove it - hopefully if there is a kernel of infection then it will come out with the scab. If the scab is not loose the next day with soaking/clear Iodine, then just repeat the process. Sometimes cutting the scab and kernel is needed, but since this is on a toe, the tissue is thin and she already has some foot problems, less "invasive" is best. You have time to work on it.