I get this message "Forbidden You don't have permission to access / on this server" for my own web page. My IT guy changed a file in the FTP setup page.

My IT guy erased a ohp file in the FireFTP page setup in order to change some imagen in my website. From that moment I cannot acces the website anymore. I get this "ForbiddenYou don't have permission to access / on this server." my website is pokemaoke.com. Would like to know where the files go when you erase them from the FireFTP or how to fix this stuff. Please help I have no clue