Doesn't eat? Wow. I've never had that happen. Mine are pigs!

I agree with Carlos, try getting some night crawlers from the bait shop. I give each of my frogs one, every other day. I also put tablets of frozen blood worms into the tank and they go nuts for them. Ive trained my frogs to eat the night crawlers from my hand. I tap on the top of the tank and the swim right up where I dip the crawler in and out of the tank. Same for the blood worms.

Looking at your frog, I wonder if your ammonia levels are high. Have you tested all of those?