While not explicitly labeled "report a login issue," the link on the Facebook home page is your primary gateway to logging a problem.
If none of the standard recovery methods work: report a login issue home page facebook
: Visual evidence is highly effective. Attaching a screenshot of the specific error message helps technical teams identify the exact bug. While not explicitly labeled "report a login issue,"
If you cannot access the app, you can submit a manual review via the web browser. report a login issue home page facebook