After 2 weeks, my 8 week old puppy still pees and poops in her crate at least once a night. She is also eating her poop. I have tried everything. I get up with her twice a night and walk her about 15 minutes. Sometimes she will poop but she will still have an accident every night. How can I stop her from pooping in her crate and eating it?

It sounds like she is still anxious from being taken away from her mother and siblings too young (6 weeks)? She also needs more exhausting play in the evening, and her trips outside should be routine. Dogs can tell time! That way she will get used to waiting for those times. Try 2.5 hrs apart for now. And finally, she needs to be as close to your bed as possible, and with toys and a ticking clock and blankets. At bedtime, crowd her crate with a box and blankets so she won't want to go in the crate.