Yandex.OAuth: Failed to determine the list of requested accesses (invalid_scope) — what's wrong?

Question

symfony

There is a site on Symfony. For authorization through Yandex, I installed KnpUOAuth2ClientBundle a long time ago. Everything was wonderful. But today, unfortunately, I found that the authorization stopped working. Displays the inscription:
You are leaving Yandex
Failed to determine the list of requested accesses (invalid_scope)

Now you will be redirected to the application page.
Be careful: Yandex has nothing to do with it.

Nothing has changed on the site, in the Yandex.OAuth settings, too. Generating a new application didn't help.