Using Update to install proftpd gives error !

[kadi]

Hello everybody
I download the package for proftpd _1.3.2-19_i386.deb and tried to use
ispconfig update to install it, also i tried another one *.tar.gz too and both
got this error :
No such file or directory in /home/admispconfig/ispconfig/web/admin/update/install.php on line 40
I even made a directory : temp under /home/admispconfig/ispconfig
and still ddidn't work.
Please any help will be appreciated.
Thanks in advance.

[till]

Hi,

you can not install debian packagea trogh the ISPConfig update function. To update your debian system on the shell, run:

apt-get update
apt-get -u upgrade