I have running Debian server with ispconfig3 and everything seems to work fine except today i wanted to install and setup vnstat but i get this error on installation Code: The following NEW packages will be installed: vnstat 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded. Need to get 82.4 kB of archives. After this operation, 311 kB of additional disk space will be used. Get:1 http://ftp.us.debian.org/debian/ squeeze/main vnstat amd64 1.10-1 [82.4 kB] Fetched 82.4 kB in 1s (41.4 kB/s) Selecting previously deselected package vnstat. (Reading database ... 43895 files and directories currently installed.) Unpacking vnstat (from .../vnstat_1.10-1_amd64.deb) ... Processing triggers for man-db ... Setting up vnstat (1.10-1) ... insserv: warning: script 'K01jailkit' missing LSB tags and overrides insserv: warning: script 'jailkit' missing LSB tags and overrides Starting vnStat daemon: vnstatdZero database found, exiting. failed! What makes me confused and i don't understand is that jailkit is installed and it's working fine. It seems that vnstat is also installed and tracking bandwidth but what are the errors i got and why failed at the end?