Troubleshooting

I am not receiving the confirmation email

Check the spam folder — the most frequent cause, especially on an instance whose domain has not yet published its SPF, DKIM and DMARC records.
Wait five minutes before asking again: a new send is only possible after that delay, and clicking ten times produces a single link.
Try another address if your provider blocks the sending domain.
The administrator can check the Mail tab and send a test message. A test that does not arrive locates the problem on the server side, not the user side.

An unconfirmed address blocks nothing: you can work normally, only the publication notice will be missing.

My reset link does not work

A link expires (duration set by the administrator) and a link already used no longer works: request a new one from /forgot.
Only one link is valid at a time: requesting a new one invalidates the previous ones. If two emails arrived, only the most recent works.

“Too many requests” (429)

The rate limit protects the forms. It applies per network address and per window:

wait until the window ends (often one minute);
behind a corporate proxy or a shared VPN you may share the address with many people — hence a 429 that is not about you personally;
repeated hammering may trigger a temporary ban of a few minutes, independent of the password.

Repeated wrong passwords lock the account for a while; the lock message only appears after a correct password, so as not to reveal that the account exists.

The live mode will not start

The PIN is valid for one session: if it is refused, the session has ended or been cancelled. Create a new one from the quiz page.
Players must be on the same instance as the host: a /play/<code> link from one instance does not work on another.
A single-attempt quiz refuses a second participation by the same account, including in live mode, and including the host if they chose to play.
If the screen freezes, reload: the session survives a reload as long as the host has not closed it.

The AI features do not appear

That is expected: with no provider configured, the interface hides the buttons instead of showing them failing. Ask the administrator whether a model is configured; the Model provider tab says so, with a test button.

The image upload is refused

Accepted formats: common images (JPEG, PNG, WebP, GIF) within a size limit.
An oversized file is refused by the server, not the browser: shrink it before dropping it.
Instance media live in the data volume: they are backed up with the database and restored with it.

My page disappeared from the history

It has not disappeared: History lists versions, and a restore creates a new version without erasing the previous ones. If the whole page is gone, check you are in the right wiki space and that your role gives access to drafts.

Nothing displays, the page stays blank

Clear the cache or reload without cache.
Check the browser console: an extension blocking scripts breaks the interface.
On an older instance, a partial deployment sometimes leaves inconsistent files: report it to the operator, with the time and the page.

Reporting a problem

For a software defect: an issue on the repository, with the screen, the browser, what you expected and what happened. For an accessibility problem, the accessibility label is treated as a blocking defect. For anything specific to a given instance — account, content, email — see its administrator: the project does not hold the data of each installation.