Write some Software

Recently we had someone recode a chat that was written back some years ago, to work with todays mysql and php. Much of the project has been completed and to be fair, the freelancer did quite a bit of work for a fair price. We've found two issues though, This is a chat room as I've mentioned, it connects to a mysql database. In that database, we store usernames, passwords, descriptions, picture urls, etc. Our edit user and delete user currently do not work. They bring up a blank page, in view source via firefox, they show nothing. No error logs. I've tried using older variations of the script and we keep getting the same problem. What we need is someone to figure out why they aren't working, and recode the page to make it work. That's it. It's only two pages. Now the tricky part. We plan on opening the chat on Monday. That leaves just about 24 hours to get this done. If you know coding, this should be easy.