Limits and error codes

This page collects the limits you might run into and the error codes you could actually see on qxbao.dev, in plain language — the ones tied to these basics guides, grouped by feature.

Account & approval

Code	What it means	What to do
`APR-01`	Your account is still waiting for an administrator to review it.	Wait for an email once a decision is made — nothing else to do.
`APR-02`	An administrator rejected your account, with a stated reason.	Read the reason, then submit one appeal asking for it to be reconsidered.
`APR-03`	You already submitted an appeal for this rejection.	Wait for an administrator to review it — only one appeal is allowed per decision.

Agreement

Code	What it means	What to do
`AGR-01`	You haven't accepted the current User Agreement or Data Protection Notice yet.	Open Agreement and privacy and accept the current version.
`AGR-02`	One of the documents was updated since you last accepted it.	Review the new version and accept it.
`AGR-03`	The document's text changed while you were still reading it.	The page reloads the latest version automatically — review it again before accepting.

Account restriction

Code	What it means	What to do
`RST-01`	This action is blocked while your account is temporarily restricted.	Submit an appeal from the restriction banner; your balance and history stay visible the whole time.
`RST-02`	You already have an appeal pending for this restriction.	Wait for an administrator to review it.

Account security

Code	What it means	What to do
`AUTH-004`	This action needs a fresh password confirmation.	Enter your password again to continue.
`USR-15`	The two-factor code you entered is wrong or has expired.	Enter a fresh 6-digit code from your authenticator app, or use a backup code.
`USR-24`	Your account has wallet activity on the QXC network, so it cannot be deleted.	Send a message to @admin in Messages to discuss your options.

Wallet

Code	What it means	What to do
`KEY-04`	Your account is not yet approved to use QXC.	Wait for an administrator to approve your account for the QXC network, then try wallet setup again.

Sending QXC

Code	What it means	What to do
`CHN-10`	The recipient's address or its checksum is invalid.	Check that you copied the `qxc1…` address correctly.
`CHN-13`	This signed authorization was already used for a different transaction.	Sign a new transfer request — resubmitting the exact same one is safe and does not move funds twice.
`CHN-14`	That address is a system account and cannot receive a direct transfer.	Double-check the recipient address.

Faucet

Code	What it means	What to do
`FCT-01`	You need to wait before requesting from the faucet again.	Check the countdown on the Faucet page and come back later.
`FCT-02`	The faucet has reached its monthly treasury cap.	Try again later — this isn't specific to your account.

Rate limits

Some actions are limited by how often you can repeat them: signing in or registering, actions that move QXC or change account state, and heavier requests. Every limited response carries X-RateLimit-Limit, X-RateLimit-Remaining, and X-RateLimit-Reset headers so you can see how much room you have left and when it resets. The exact numeric limits aren't fixed — they're configured per environment.

For account-specific status messages, see Create an account and sign in; for the health check behind the public uptime figure, see System status.

Need help?

If this guide doesn't answer your question, send a message to @admin in Messages. If your account is pending, rejected or restricted, use the appeal form shown on that screen instead, because Messages is only available to approved accounts.