public function inactiveSettings()
    {
        $seeder = new SettingsTableSeeder();

        // Package Settings
        // if Laravel v5.2 or 5.3
        if (version_compare(app()->version(), '5.2.0', '>=')) {
            $installed_settings = DB::table('ticketit_settings')->pluck('value', 'slug');
        } else { // if Laravel 5.1
            $installed_settings = DB::table('ticketit_settings')->lists('value', 'slug');
        }

        if (!is_array($installed_settings)) {
            $installed_settings = $installed_settings->toArray();
        }

        // Application active migrations
        $default_Settings = $seeder->getDefaults();

        if (count($installed_settings) == count($default_Settings)) {
            return false;
        }

        $inactive_settings = array_diff_key($default_Settings, $installed_settings);

        return $inactive_settings;
    }