A misconfiguration on the server caused a hiccup. Check the server logs, fix the problem, then try again. error_log를 보니 아래와 같은 것들이 있습니다. 어떻게 해야할지...ㅠㅠ
[04-Jan-2016 14:19:55 UTC] PHP Fatal error: Cannot declare self-referencing constant 'list' in /public_html/wp-content/plugins/kboard/htmlpurifier/HTMLPurifier.standalone.php on line 15136 [05-Jan-2016 12:22:04 UTC] PHP Fatal error: Cannot declare self-referencing constant '(null)' in /public_html/wp-content/plugins/kboard/htmlpurifier/HTMLPurifier.standalone.php on line 15136 [05-Jan-2016 20:48:57 UTC] PHP Fatal error: Call to undefined method HTMLPurifier_Strategy_MakeWellFormed::execute() in public_html/wp-content/plugins/kboard/htmlpurifier/HTMLPurifier.standalone.php on line 19374 [06-Jan-2016 00:48:38 UTC] PHP Fatal error: Cannot call constructor in /public_html/wp-content/plugins/kboard/htmlpurifier/HTMLPurifier.standalone.php on line 18415