Was she to old and the next one took her until the next day to deliver it was dead also day three she had another it was dead but tiny and she ate its body and I don't know why

Yes, she is too old. Please be merciful and get her spayed. The next litter could kill her.

A lot of mother animals eat their babies if they die. It's a survival instinct so the smell doesn't draw predators to their nest, and it gives them nutrients to care for the other babies.

She might be too old, or too small, to have kittens. You should really think about getting her spayed.