Facebook OAuthException code 190 subcode 490 - user is enrolled in a blocking, logged-in checkpoint

Question

Well the title says it all. Does anyone have an idea what the code 190, subcode 490 means? (Error validating access token: The user is enrolled in a blocking,

Answer 1

As @CBoe mentioned,it means the user account is currently flagged by Facebook’s security algorithms. I got this message when logged in several times in different place. Once your account become origin and can login successfully, it will disappear.