Everyone has gotten it pretty clear about the whole PAM thing.
As for another issue, PLEASE get the snake off of pine and put her on aspen or newspaper. Newspapers may be a good idea to watch for mites, but even after that don't use pine. Even if it's approved, it's not a safe substrate for snakes.
Is your snake a young snake? If she's tiny, she may not be eating because her enclosure is much too large. A 30g tank is only good for an adult breeder size ball python. It's much too much space for a baby and will probably make it feel insecure.
Do you have 2 tight hides on each side of the enclosure? Make sure they're not log hides and that there is no space between the snake and the hide when the snake is inside of it.
What have you been trying to feed? Make sure to feed something about the same thickness as the thickest point on the body. If your trying to feed f/t, try live. If your trying mice, try rats. Etc.
Yes, it is also very important to have the snakes separate, for multiple health and unsafe reasons. As well as stress on both of them.
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