Simple oscommerce error 5 minute job

Solve the error on this homepage [login to view URL], this site is proving to be a problem and i need it sorted soon, anyone with enough expertise and time to solve the problem please feel free to bid. BE ADVISED that i am an experienced webmaster and i know how to fix this problem however do not have the time to search for the problem. Also note that this payment is pending completion of the bug fix and retrieval of the site without a backup being implemented. You will have to search my oscommerce directory and find out exsactly where the error occoured, i will provide you with the fix to solve the problem from then on its only a matter of time. For experienced php/mysql programmers this is a 5 minute job but i do not have the time to do this as i have other commitments and other websites. As such be advised that the maximum bid shouldn't go over around $30 Also be advised that the project can be viewed here [login to view URL]