Blzwebapi00000404 - getting character profile

Hi there,
I can’t find data about characters of my friend by WoW API. I send simple request from develop battle net like this: /profile/wow/character/eversong/%D0%B0%D0%BC%D0%BD%D0%BE%D1%80?namespace=profile-eu&locale=ru_RU&access_token=XXX

And I have this response:

  "code": 404,
  "type": "BLZWEBAPI00000404",
  "detail": "Not Found"

Characters: амнор, хагараат, францисканец, глиндур
Realm: eversong

Of course I send data in lowercase, and I can find my characters or other characters:

My friend has an active subscription and is an active player. WoW armory show actual information about him characters.

What could be the problem?

Please, have a look at this discussion and check if that is not the same problem.

Yes, it worked thanks