HELP installation on a debian won't run

[peter.de.groote]

great control pannel guys

its up and running ,

i haven only 1 prob with ftp (file manager)
The error occured in file /var/www/ispcp/gui/tools/filemanager/includes/filesystem.inc.php on line 56.

function ftp_openconnection (/var/www/ispcp/gui/tools/filemanager/modules/browse/browse.inc.php on line 231)
function net2ftp_module_printBody (/var/www/ispcp/gui/tools/filemanager/main.inc.php on line 317)
function net2ftp (/var/www/ispcp/gui/tools/filemanager/index.php on line 55)
argument 0: printBody