If your server have previously installed Fantastico DeLuxe and you might no longer needed it, you may uninstall it or remove it by following steps:
Log into the server through SSH.
Run following commands to uninstall Fantastico.
rm -rf /var/netenberg/fantastico_de_luxe/ rm -rf /usr/local/cpanel/whostmgr/docroot/cgi/fantastico/ rm -rf /usr/local/cpanel/3rdparty/fantastico* rm -rf /usr/local/cpanel/base/frontend/*/fantastico rm -f /usr/local/cpanel/base/frontend/x/cells/fantastico.html rm -f /usr/local/cpanel/base/frontend/x/cells/cpanelplugin_Fantastico_De_Luxe.html rm -f /usr/local/cpanel/whostmgr/docroot/cgi/addon_fantastico.cgi
Done.