Update and fix an old Joomla Page.

Hi there. I have a very old joomla site that stopped running some months ago. (it doesn't even load the front page)The reason might that it wasn't updated on a regular base. I would need you to fix the page. (and maybe also update 2 other joomla websites, that have problems updating.
You should be an expert in joomla and have a lot of experience with this cms. Also, very good english communication is required. Looking forward to talk to you!