kboard 설치할 때마다 다음의 오류가 뜨네요. 무슨 문제일까요? 버전은 현재 최신 파일입니다. 

Fatal error: Uncaught Error: Call to a member function get_error_message() on array in C:\xampp\apps\wordpress\htdocs\wp-content\plugins\kboard\class\KBUpgrader.class.php:59 Stack trace: #0 C:\xampp\apps\wordpress\htdocs\wp-content\plugins\kboard\class\KBUpgrader.class.php(73): KBUpgrader::connect('http://updates....') #1 C:\xampp\apps\wordpress\htdocs\wp-content\plugins\kboard-comments\index.php(180): KBUpgrader::getLatestVersion() #2 C:\xampp\apps\wordpress\htdocs\wp-includes\class-wp-hook.php(286): kboard_comments_admin_notices('') #3 C:\xampp\apps\wordpress\htdocs\wp-includes\class-wp-hook.php(310): WP_Hook->apply_filters(false, Array) #4 C:\xampp\apps\wordpress\htdocs\wp-includes\plugin.php(453): WP_Hook->do_action(Array) #5 C:\xampp\apps\wordpress\htdocs\wp-admin\admin-header.php(264): do_action('admin_notices') #6 C:\xampp\apps\wordpress\htdocs\wp-admin\admin.php(216): require_once('C:\\xampp\\apps\\w...') #7 {main} thrown in C:\xampp\apps\wordpress\htdocs\wp-content\plugins\kboard\class\KBUpgrader.class.php on line 59