# Common errors

# checks.state argument is missing error

There are many reasons why you might see this error. In development mode, make sure to use http://localhost:3000/ to access the page instead of the IP address displayed by Nuxt.js in the CLI.

If this doesn't solve the issue, it's likely caused by the wrong configuration in middleware.config.js or Auth0 Dashboard. Unfortunately, due to complexity, it's not possible to pinpoint the root cause.

# Message: External OAuth did not respond in time error

This error is thrown when commercetools didn't receive the response to the introspection request within 500ms (opens new window) or at all.

When response from the commercetools contains this error, RetryLink (opens new window) in Apollo GraphQL client will resend the request 3 times before throwing an error. If you see it, it means that all attempts failed.

Ensure that the introspection endpoint configured in the Enable introspection section is reachable from the Internet (commercetools server specifically).

# Message: ExternalOAuth did not reply according to RFC 7662 error

This issue is likely caused by the wrong introspection endpoint configured in the Enable introspection section. Ensure that the introspection endpoint is working and is reachable from the Internet (commercetools server specifically).