otalk can't find app.js

I try to run oTalk with stanzaio and prosody server. Now I try to start this app locally. When I load the login page there is no problem. After I click "GO" button I get:

NetworkError: 500 Internal Server Error - localhost:8000/app.js

In network I see:

Error: ENOENT, no such file or directory 'C:\otalk\otalk\clientapp\templates\:\otalk\otalk\clientapp\templates\body.jade'

Can you help me to fix the problem?