Kboard 설치 후 게시판을 생성하려고 활성화하면 

홈페이지 자체가 인식되지 않고 아래 오류 메시지가 출격됩니다.

급하게 비공개 게시판을 사용해야 하는데 의견 부탁드립니다. 

Uncaught Error: Call to undefined function wp_is_json_request() in /home/ccej/wp-content/plugins/kboard/index.php:75 Stack trace: #0 /home/ccej/wp-includes/class-wp-hook.php(298): kboard_plugins_loaded('') #1 /home/ccej/wp-includes/class-wp-hook.php(323): WP_Hook->apply_filters(NULL, Array) #2 /home/ccej/wp-includes/plugin.php(453): WP_Hook->do_action(Array) #3 /home/ccej/wp-settings.php(326): do_action('plugins_loaded') #4 /home/ccej/wp-config.php(96): require_once('/home/ccej/wp-s...') #5 /home/ccej/wp-load.php(37): require_once('/home/ccej/wp-c...') #6 /home/ccej/wp-blog-header.php(13): require_once('/home/ccej/wp-l...') #7 /home/ccej/index.php(17): require('/home/ccej/wp-b...') #8 {main} thrown in /home/ccej/wp-content/plugins/kboard/index.php on line 75