Apache

Hi, I am in urgent need of some assistance, I am new to linux and hosting and I paid a guy i used to know to build a hosting server for me using Ubuntu and EHCP, all has been working well for about 2 years but all of a sudden my websites went down. When playing around I discovered that apache won't start, giving me the following error: VirtualHost*:80 -- mixing * ports and non-* ports with a NamVirtualHost address is not supported.

I have no idea why it went down as nothing has changed on the server at all, any assistance would be greatly appreciated.