You'd have to contact the developer of that extension. It sounds like you were using Facebook All. I've never used that before, but when you uninstalled it, it seems like everything was not removed properly. There's likely a plugin or module left enabled on the site that is still trying to load their settings.
You may be able to use a MySQL tool to edit the database and turn off those plugins/modules, but I'm not even sure which ones it would be that are causing the problem.
I hope that helps explain, and I hope you get a good response from there developers. Unfortunately, there's not anything we can do from within JFBConnect to fix this for you.
Please keep us posted if you have any questions or run into other issues though.
Thanks,
Alex
1146 SQL error
