If you guys hitting this following error when you save setting from backend :
Catchable fatal error: Argument 2 passed to Joomla\Registry\AbstractRegistryFormat::getInstance() must be of the type array, string given, called in .../libraries/vendor/joomla/registry/src/Registry.php on line 649 and defined in .../libraries/vendor/joomla/registry/src/AbstractRegistryFormat.php on line 39
You have to download my attached fix file and replace into your file ->
JoomlaFolder\administrator\components\com_easydiscuss\models\settings.php