Fatal error: Uncaught Error: Call to undefined function trailingslashit() in /export/sd221/www/jp/r/e/gmoserver/8/1/sd1143381/osyamanbe-kankou.jp/blog/wordpress-5.0.3-ja-jetpack_webfont-undernavicontrol/wp-includes/class-wp-textdomain-registry.php:103
Stack trace:
#0 /export/sd221/www/jp/r/e/gmoserver/8/1/sd1143381/osyamanbe-kankou.jp/blog/wordpress-5.0.3-ja-jetpack_webfont-undernavicontrol/wp-includes/l10n.php(784): WP_Textdomain_Registry->set('default', 'ja', '/export/sd221/w...')
#1 /export/sd221/www/jp/r/e/gmoserver/8/1/sd1143381/osyamanbe-kankou.jp/blog/wordpress-5.0.3-ja-jetpack_webfont-undernavicontrol/wp-includes/load.php(1401): load_textdomain('default', '/export/sd221/w...', 'ja')
#2 /export/sd221/www/jp/r/e/gmoserver/8/1/sd1143381/osyamanbe-kankou.jp/blog/wordpress-5.0.3-ja-jetpack_webfont-undernavicontrol/wp-includes/load.php(278): wp_load_translations_early()
#3 /export/sd221/www/jp/r/e/gmoserver/8/1/sd1143381/osyamanbe-kankou.jp/blog/wordpress-5.0.3-ja-jetpack_webfont-undernavicontrol/wp-settings.php(74): wp in /export/sd221/www/jp/r/e/gmoserver/8/1/sd1143381/osyamanbe-kankou.jp/blog/wordpress-5.0.3-ja-jetpack_webfont-undernavicontrol/wp-includes/class-wp-textdomain-registry.php on line 103