Thanks for your message. Sorry to hear about your difficulties using your computer's iTunes library, but we'd be happy to help. Is this the first time you're attempting to use the iTunes library, or have you previously used it? If previously used it with success, has anything recently changed? The more information that you can provide, the better. What operating system are you using?
As a starting point, we have some great troubleshooting suggestions available via our support site HERE and HERE. Let us know.