[Moderator] Moderator cannot edit personal information

[Viacheslav-QC]

Environment: OS, browser.
Reproducible: always
Build found: "commit 147fa44"

Steps to reproduce

1. Log in as Moderator.
2. Go to "Особиста інформація" section.
3. Press "Редагувати" button.

Actual result
Moderator cannot edit personal information; changes are not saved.
Attached bug screenshots or video recorded.

Expected result
Moderator should be able to edit personal information and save the changes.
Attached screenshots or mock-ups if available.

User story and test case links

Labels to be added
"Bug", Priority ("pri: "), Severity ("severity:"), Type ("UI, "Functional"), "API" (for back-end bugs).