Translations:API:FAQ/28/en

This is usually because you are either not passing a token at all (read about tokens in the documentation of the module you are using) or because you are having trouble staying logged in. It's also possible you are reusing a type of token that can't be reused (see module documentation for details) or that you are using a token that's associated with an expired session. In general, when using cached tokens, refetch the token (see API:Tokens) and try again before giving up.