MusicServer4Lox error on webpage after installing on ubuntu

[ivusosk ivusosk]

Hello please I need help. I installed MusicServer4Lox following these steps: http://music-server.net/help/MusicServer4Loxinstallieren.html

After restart I had to manually start /var/www/settings# squeezeboxserver &

Then I log onto my ip: http://192.168.1.7:9000 set the directory with mp3files, create acoont on squeezebox page.

And when go on to musicserver4log page I have error like picture below.

So I setup the config like my main ethernet is 

root@ubuntulox:/var/www/settings# cat network.conf 

ens160

dhcp

192.168.1.7

255.255.255.0

192.168.1.1

02:42:59:c1:1c:55

But still showing the error screenshot embeded.

Please can you help me someone?

Many thanks Ivan