Sign in required
Manage Account page shows account.page.signInRequired (Sign in required). Many account APIs also return Sign in required. with 401.
Why this happens
No valid member session. Deleted-files gate uses the more specific Sign in to view deleted files.
Diagnose and fix
1. Sign in, then reopen Manage Account.
2. If the session expired mid-edit, sign in again and retry.
3. See Could not load profile after sign-in if load still fails.
4. See Sign in to view activity for similar gates elsewhere.