I now seem to be experiencing similar problems with access tokens - this within the last week or so and without respite. I'm using WPBook Lite 1.5.2.
In using "Generate Access Token" I get this error message from FB:
An error occurred with Continuum. Please try later
API Error Code: 191
API Error Description: The specified URL is not owned by the application
Error Message: Invalid redirect_uri: Given URL is not permitted by the application configuration.
Prior to this and post the update, everything was working as it should.
With one thing and another, came across FB's Debugger tool and this is what came up:
Input URL, Access Token, or Open Graph Action ID
Response Code 200
Fetched URL https://www.facebook.com/apps/application.php?id=325326290879459
Canonical URL https://www.facebook.com/apps/application.php?id=325326290879459
Critical Errors That Must Be Fixed
Facebook URL Facebook URLs cannot be crawled.
Errors that must be fixed
Missing Required Property The 'og:url' property is required, but not present.
Open Graph Warnings That Should Be Fixed
Inferred Property The 'og:title' property should be explicitly provided, even if a value can be inferred from other tags.
Parser Mismatched Metadata The parser's result for this metadata did not match the input metadata. Likely, this was caused by the data being ordered in an unexpected way, multiple values being given for a property only expecting a...See more
Raw Open Graph Document Information
Meta Tag <meta property="fb:app_id" content="325326290879459" />
Meta Tag <meta property="og:url" content="https://www.facebook.com/apps/application.php?id=325326290879459" />
Meta Tag <meta property="og:site_name" content="Continuum" />
Meta Tag <meta property="og:type" content="website" />
Meta Tag <meta property="og:image" content="https://s-static.ak.facebook.com/rsrc.php/v2/y_/r/9myDd8iyu0B.gif" />
Graph API https://graph.facebook.com/483472441670419
Scraped URL See exactly what our scraper sees for your URL
All this is whole different language to me - as in being incomprehensible - as in that 'og:url' part, likewise with this graph and open graph thing...
I'm hoping someone can make sense of this and help me get things working again.
TIA - Rogan