subdomain always None

[zachross90210]

SUBDOMAIN_URLCONFS = {
None: servers.urls',
'ololo': servers.urls.other',

}
open in browser ololo.domain.com
#~ ololo.domain.com in hosts
#~ domain.com is nginx hostname
then see error page with string:
Using the URLconf defined in servers.urls, Django tried these URL patterns, in this order:

how to fix it?

---

answer
check defined SIDE_ID from app Sites x_x

[Allan-Nava]

The project is still alive?