Hello,

the message 'An active access token must be used to query information about the current user' comes from Facebook and it probably means that there is some misconfiguration or invalid permissions.

Just to ensure that the problem is not related to the Facebook user used to test login, please try to perform a login in the same way on the demo site: http://demo.storejextensions.org/instantfblogin/

If it works on demo site we know that the problem is probably related to the Facebook App settings.

Greetings,

John