prestashop root file error please help convert to magento

Cancelled

Job Description

I have done something to my web root and ftp files now i cant access anything.. just need you to install and configure magento becuase i have no experience but i currently have prestashop files on there so they will need to be removed i have a product list from prestashop i need converted and a theme that for magento i also need installed. i need it done straight away and WILL PAY BONUS IF DONE PROMPTLY