Cs-Cart Access Denied error message

Hello, we're having an issue with one of our cs cart sites. When we visit the site homepage, it says access denied. This problem seems to have just appeared and we have no idea how to get rid of it. The backend admin panel seems to be working fine. Any questions, just ask. ## Deliverables 1) All deliverables will be considered "work made for hire" under U.S. Copyright law. Employer will receive exclusive and complete copyrights to all work purchased. (No 3rd party components unless all copyright ramifications are explained AND AGREED TO by the employer on the site per the worker's Worker Legal Agreement). ## Platform cs-cart