Getting "Class 'SocialProfilePlugin' not found" - Site is down!

Well, that's obviously not good.

First, to get you back up as soon as possible, let's try the widest approach to fixing the issue. To do so, edit the 'index.php' file in the root of your Joomla installation. At the very bottom is a line like:
Directly above that, insert another line so together, the look like:
That should guarantee that Joomla can find the proper file for the class it's balking about.

Next, assuming you can get in the admin area:
* Disable all Social Profile plugins
* Re-install JFBConnect v9 again
* Try removing that line from the index.php file.

If it blows up again, re-add it and let us know. At least you should be at a 'working' point while we investigate what could be causing the error. This isn't something we've seen or heard of, but obviously want to get fixed ASAP.

Thanks,
Alex

Ok.. something really strange happened with the installation in general as some required files are missing.

Let's get those replaced by doing the following:
* Unzip the JFBConnect_v9.0.zip file you downloaded
* In there, unzip packages/libraries/sourcecoast.zip
* Upload all the files from that sourcecoast.zip file to:
YOUR_SITE/libraries/sourcecoast

When done, you should have a directory and files that look like this on your site:
/libraries/sourcecoast/adminHelper.php
/libraries/sourcecoast/articleContent.php
/libraries/sourcecoast/openGraph.php
/libraries/sourcecoast/openGraphPlugin.php
/libraries/sourcecoast/sourcecoast.xml
/libraries/sourcecoast/articleContent.php
/libraries/sourcecoast/plugins/jfbconnectPlugin.php
/libraries/sourcecoast/plugins/providerPlugin.php
/libraries/sourcecoast/plugins/socialprofile.php

Thanks!

You'll need to use the library files from JFBConnect 9.0. The ones in 8.6.4 don't support all the calls in JFBConnect v9 which will just lead to more errors.

Once the 9.0 library is unzipped into the correct folder, I'm assuming you're still going to have the error above. It seems like a lot of JFBConnect was not updated during the installat/upgrade process, including the Open Graph plugins.

If the same error persists, you'll need to make an edit to disable those plugins by editing:
/libraries/sourcecoast/openGraphPlugin.php
Around line 42 is the __construct function. Add 'return' after that, so it looks like:That should disable the OpenGraph plugins and hopefully get your site up. If not, let us know the next error and we'll work through it.

Thanks,
Alex

That makes us so happy to hear!
Re-installing JFBConnect v9 was the right step to hopefully clean up any of the changes you made. Please remove the line from the index.php file though as that should not remain there.

With that said, we're a bit flummoxed as to what possibly could have happened during the installation to cause this. Could you let us know about that initial installation so we can try to investigate further:
* Do you know what version of JFBConnect you were using beforehand? From your Autotune history, the last I see is v7.2.4. While that is a quite old version, our installer should still handle it. We'd love to know if you may have been using a more recent version though so we can test appropriately.
* When you installed, was there any PHP or server error messages or did it just dump you to the PHP error you started this thread with?

Any details are helpful. We definitely want to fix this up so others don't have the same issue and we greatly appreciate your patience in getting you going!

Thanks,
Alex