Yes, sure.
Now I set default app "System" back, and try to get help from Yandex support.
Also I write letter to hoster support, but hoster answer they can't help, because they can't set canaoncal link at server, only in page code.
Now I wait answer from Yandex support.
Yes, I return settings back, 'system' is default app now.
But it not solve problem, Yandex crawler still say to '/community/store' : "visited, but not added into search base".