HELP! Accidentally deleted a necessary file!

I was cleaning out malware and I think I deleted a file the site needs. I’m getting this message, how do I get the file back in?!

Warning: require(/home/singforhim94/ failed to open stream: No such file or directory in /home/singforhim94/ on line 179

Fatal error: require(): Failed opening required ‘/home/singforhim94/’ (include_path=’.:/usr/local/lib/php:/usr/local/php5/lib/pear’) in /home/singforhim94/ on line 179

Download the Wordpress package from then SFTP (or FTP) that file back into your site.