Hello
You can see code changed in file plugins/system/jo_k2_autopost_facebook/jo_k2_autopost_facebook.php and go to line 128-135 and changed
if(JPATH_BASE == JPATH_ADMINISTRATOR) {
JFactory::$application = JApplication::getInstance('site');
}
$article_url = JRoute::_(K2HelperRoute::getItemRoute($id_slug, $cat_slug));
if(JPATH_BASE == JPATH_ADMINISTRATOR) {
JFactory::$application = JApplication::getInstance('administrator');
}
To
$article_url = JRoute::_(K2HelperRoute::getItemRoute($id_slug, $cat_slug));
Best regards
Bach Pham