Avatars are missing after update

I just updated discourse and realized that many of user avatars are missing.

what could be wrong and how can I fix it?

Does it work in safe mode?

No
Still I cant see correct avatars.

Do you use a CDN like Cloudflare? If so, try disabling it?

No.
Everything is on local.
How can I find the real path of avatar in disk? At least I can check if the actual file exists or not.