Linux, WebServer, Application

Hi to all.
If I start web application internet or intranet from Windows or Android, it is started and working fine.
If I try to start application from Ubuntu Linux (Mozzila Firefox: 192.168.1.199/erp)
I get error "404-File or directory not found".
192.168.1.199 show me IIS server and it work.

Maybe I am missed something.

Thank you in advance.