Empty response at validation when trying upload new version of firefox addon

[vksaver-team]

Describe the problem and steps to reproduce it:

When I want to upload new version of firefox addon at addons.mozilla.org I got 403 error like at picture attached ("empty response 403")

I trying to upload old versions of my addon, that already realeased, but same error. Url of my addon: https://addons.mozilla.org/ru/firefox/addon/%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C-%D0%BC%D1%83%D0%B7%D1%8B%D0%BA%D1%83-%D0%B8-%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-%D1%81-%D0%B2%D0%BA/

(Please include as many details as possible.)

What happened?

403 error after check my new version of addons.

What did you expect to happen?

Checking without error and add new version of my addon.

Anything else we should know?

(Please include screenshots and any relevant files.)

┆Issue is synchronized with this Jira Task