/opt/COMODO/load_cmdagent.sh: 64: .: Can't open /etc/init.d/functions

when I want to install the comodo antivirus for linux 1.1,
I get a problem

/opt/COMODO/load_cmdagent.sh: 64: .: Can’t open /etc/init.d/functions

I download the Debian 32bit version from Download Comodo Antivirus for Linux | Best Free Linux Antivirus

comodo: cav-linux_1.1.268025-1_i386.deb
my OS: kali 1.06
kernel : 3.12-kali1-686-pae

for help