[Mon Apr 07 14:53:42 2008] [error] [client 192.168.0.68] client denied by server configuration: /home/users/dumie/file.txt
The information from browser was "access denied". First I was thinking about privilages, but even chmod 777 to whole path didn't work. The only difference was that this vhost pointed to homedir not to special directory made for www users.
After checking documentation the solution was adding a
allow from all
into the <VirtualHost> </VirtualHost> section