Is this path set in the local passwd files of old users on your server or is it empty as in the file you posted above?
Yes path in the local passwd files of old users is empty like- :::/bin/bash
The saddest story Is that I probably will not find fix by my self.. It appeared after wheeze upgrade I did not notice it at right away. Maybe I'll try to re-install Jaikit to 2.1.14 but I doubt.. since before I was also 2.1.14
It is strange that I am the only one with this kind of problem