My puppy is 5 months I have had her since she was born... She will not stop pooping in the kennel. I will leave for 3 hours and come back to Poop all in her kennel. I try to tell her no and go out side to potty but nothing seems to work. She sleeps out at night and has no problem . It is only when we are gone and leave her in the kennel... I need help...

This could be separation anxiety. How often and how much do you feed her and when? A balanced, healthy dog would rarely do her business in her kennel, BTW do you mean crate?

What all is in the kennel? Do you feed him while you are away? If you have blankets and such in there, I would stip the kennel clean and only allow the pan on the bottom. Use a good enzyme cleaner to get the odor out of the crate and make sure you aren't feeding him directly before crating. How long is he crated for, and are you allowing sufficient time to use the bathroom before crating?