Parse error: syntax error, unexpected single-quoted string ",", expecting ")" in /ejcom21/www/wp-includes/fonts/class-wp-font-face.php on line 26

Fatal error: Uncaught Error: Call to a member function set() on null in /ejcom21/www/wp-includes/l10n.php:856
Stack trace:
#0 /ejcom21/www/wp-includes/l10n.php(959): load_textdomain('default', '/ejcom21/www/wp...', 'ko_KR')
#1 /ejcom21/www/wp-includes/class-wp-fatal-error-handler.php(49): load_default_textdomain()
#2 [internal function]: WP_Fatal_Error_Handler->handle()
#3 {main}
  thrown in /ejcom21/www/wp-includes/l10n.php on line 856