Warning: require(admin/common.inc) [function.require]: failed to open stream: No such file or directory in /home/aga/ftp/index.php on line 3

Fatal error: require() [function.require]: Failed opening required 'admin/common.inc' (include_path='.:/usr/share/php:/usr/share/pear') in /home/aga/ftp/index.php on line 3