I am really struggling with this now and although Jack WPMU Dev has tried to help, he seems to have disappeared. I also thought there may be other users having the same issues.
1. Ultimate Facebook gets an error back from FB:-
post_on_facebook exception (#200) The user hasn't authorized the application to perform this action.
This occurs when trying use the auto post feature, one of the main reasons why I want the plugin and btw the plugin was one the main reasons I paid to use WPMU Dev as a gold premium member.
Jack informed me this morning that 5 days ago FB changed the rules of engagement and the Auto Post feature in Ultimate Facebook will no longer work unless you have your Facebook app approved by Facebook.
I have done a little more digging and it appears to me that the only way Facebook will allow a 3rd party application to publish to Facebook is if your blog/website users have logged in using the Facebook login. So the Ultimate Facebook plugin is not going to function even if you have your app approved by Facebook.
I would like someone to tell me precisely how you get your app approved. There are so many variables in the application process that need a detailed understanding of what permissions the Ultimate Facebook plugin requires to function. You cannot just select them all as if Facebook realises your app does not need the permissions to function you app will not be approved.
WPMU DEV create the app. They get it approved and then make it available to Ultimate Facebook plugin users via the Facebook app centre.
2. My installation of Ultimate Facebook has now lost the Facebook login and registration functions. They are no longer visible. This is what leads me to thinking something is getting corrupted in the database.
I had to do a total multisite re-install last week as my whole network became unavailable. I could not login to any of my sites. Ultimate Facebook was listed in the error message. This started with one site and then cascaded through the network.
3. I have been very cautious as I have set up my new multisite install and kept backups of each successful change. I recommend doing this, to be fair that's what WPMU DEV recommends if you get into their fantastic manuals and videos. I know this must be a great company but the support experience has been desperately bad for me so far.
4. There seems to be a memory issue caused by some of these problems as I had a number of max 1MB/s on the Input/output usage graph in my cPanel post the total failure of my network.
Anyway to help others I will continue:-
My multisite set up is as follows:-
WP multisite 3.9.1
I have installed wpmudev plugins:
WPMU DEV Dashboard - network activated
Domain Mapping - network activated
Ultimate Facebook (Site by site)
Google Maps (Site by site)
WordPress Importer - network activated
I have 13 sites including the primary site http://www.ichrisj.org
http://attheskincompanycomichrisj.org - mapped to -
at-theskincompany.com is active on customizrChild theme.
http://indiagabriellecom.ichrisj.org - mapped to - indiagabrielle. comis active on spacious-proChild theme.
http://thecrathornearmscouk.ichrisj.org - mapped to - thecrathornearms.co.uk is active on spacious-proChild theme.
http://drrachaelcoatescom.ichrisj.org - mapped to - drrachaelcoates.com is active on customizrChild theme.
The other 9 sites have not been edited and are on the 2014 WP theme
In the absence of any support for the last 8 hours I am about to reinstall my network from a backup. I will let you know what happens when I reinstall the Ultimate Facebook plugin. In the mean time if anyone has experienced similar issues it would be good to hear how you have resolved the issue or if you have noticed any other related issues.
An increasingly dissatisfied WPMU DEV customer who is desperate to be reassured that WPMU DEV is a great company with great products.