Access Token – Session invalidated

Please see the answer in the FAQ – #2.9:
https://www.nextscripts.com/support-faq/#a29

As I said above, re authorize the app not solving the problem!

Are you sure re-authorization was successful?

There is nothing else you could do. Your token got invalided when you changed the password. Only successful re-authorization can get you a new valid token.

I did re Authorize my Facebook Account, green window showed up but I still get the same “Error validating access token” message

Did the green windows say “Authorization successful”?

Yes, I can see the green window and it starts with:

Auth Info. This is normal technical authorization info that will dissapear unless you get some errors.Close
-= This is normal technical authorization info that will dissapear. (Unless you get some errors. If you do get errors please check them at the FAQ Page) =- 

And ends with that:

---====OK. GOT TOKEN SUCCESSFULLY

ALL OK. You have been authorized. Refreshing page....

FWIW I am experiencing the same issue after re-authorization. This was evidently caused by FB’s security measures last week in which they logged out some 90 million users, invalidating our API tokens.

SNAP shows that I am authorized, and now even shows my list of groups I can post to … but I still get an error when I try to post.

Array
(
    [Warning] => 
    [Error] => Error validating access token: The session has been invalidated because the user changed their password or Facebook has changed the session for security reasons.
)

Note from this discussion that the issue may be on FB’s end, and not SNAP:

https://developers.facebook.com/support/bugs/1329476740516876/

Ok, I just fixed this.
Just log off and log in again on facebook. Then re authorize your facebook account on SNAP. It’s just fine now.

Darren, thanks for the tip. I found the solution here:
https://developers.facebook.com/support/bugs/1329476740516876/?comment_id=1329550570509493

Hey, I’ve got this problem too. I tried to re-authorize a thousand times but it isn’t working

I’m experiencing the exact same issue. Has anyone else found a solution? Logging out and in again of Facebook did not help ??