Thanks for sending the credentials. When I enable Error Reporting in Joomla and then enable the plugin, the following error message is shown on your content pages:
Fatal error: Call to undefined function mb_split() in /home/wwwinour/public_html/libraries/sourcecoast/articleContent.php on line 357
The mb_split function is commonly installed and enabled in all versions of PHP, but your site doesn't seem to have it. To fix, please try editing libraries/sourcecoast/articleContent.php and at line 357, you'll see:
$parts = mb_split('\s+', $articleText);
Replace that with:
if (function_exists('mb_split'))
$parts = mb_split('\s+', $articleText);
else
$parts = preg_split('\s+', $articleText);
Try that and let me know how it goes.
If you're using the Open Graph Action in an article, you'll need that plugin enabled, which hopefully the above will fix.
Thanks,
Alex