Fatal error: Uncaught Error: Call to undefined function single_author_title() in /home/msyk19812017/segawanouen.jp/public_html/wp-content/themes/segawanouen/functions.php:333 Stack trace: #0 /home/msyk19812017/segawanouen.jp/public_html/wp-includes/class-wp-hook.php(298): {closure}('\xE4\xBD\x9C\xE8\x80\x85\xE5\x88\xA5: <spa...') #1 /home/msyk19812017/segawanouen.jp/public_html/wp-includes/plugin.php(203): WP_Hook->apply_filters('\xE4\xBD\x9C\xE8\x80\x85\xE5\x88\xA5: <spa...', Array) #2 /home/msyk19812017/segawanouen.jp/public_html/wp-includes/general-template.php(1519): apply_filters('get_the_archive...', '\xE4\xBD\x9C\xE8\x80\x85\xE5\x88\xA5: <spa...') #3 /home/msyk19812017/segawanouen.jp/public_html/wp-includes/general-template.php(1448): get_the_archive_title() #4 /home/msyk19812017/segawanouen.jp/public_html/wp-content/themes/segawanouen/archive.php(53): the_archive_title('<h2 class="arch...', '</h2>') #5 /home/msyk19812017/segawanouen.jp/public_html/wp-includes/template-loader.php(74): include('/home/msyk19812...') in /home/msyk19812017/segawanouen.jp/public_html/wp-content/themes/segawanouen/functions.php on line 333