Or try in internetbrowser: ip-of-your box/webadmin/terminal
There now you type in "root" and your password or enter, if no password is given.
After this you can type in "apt-get update && apt-get -f install".
There now you type in "root" and your password or enter, if no password is given.
After this you can type in "apt-get update && apt-get -f install".