A Multiplayer API error, sent with HTTP 401. Status: the Multiplayer API is in private alpha; this code is part of its published contract.
When
A sandbox project is older than 72 hours.
What to do
Start a new sandbox, or claim the project to keep it.
The answer
Every error is a JSON body with a stable error code. Clients act on the codes they know and treat any other code as a failure of its HTTP status, and keep fields they do not know.
{
"error": "project_expired",
"detail": "A sentence that is safe to show.",
"next": "Start a new sandbox, or claim the project to keep it.",
"docsUrl": "https://lobbylab.gg/docs/errors/project_expired"
}See also: every error code, the API reference and the docs.