They may be starving, blend some worms, crickets, some greens, and maybe even their favorite fruit in a blender with alot of water, strain it, and then feed it to them small doses at a time with a syringe. My bearded dragon was at the brink of death but then I gave them some of this mixture and they started to get better because of the nutrients they gained from it. Once they seem strong enough you can try and feed them leafy greens but unblended crickets and worms are probably gonna have to wait