Fatal error: Uncaught Error: Call to undefined function wp_cache_get() in /var/www/recruit.tokushukai-is.com/html/wp-includes/option.php:165
Stack trace:
#0 /var/www/recruit.tokushukai-is.com/html/wp-includes/l10n.php(63): get_option('WPLANG')
#1 /var/www/recruit.tokushukai-is.com/html/wp-includes/l10n.php(139): get_locale()
#2 /var/www/recruit.tokushukai-is.com/html/wp-includes/l10n.php(766): determine_locale()
#3 /var/www/recruit.tokushukai-is.com/html/wp-includes/load.php(1395): load_textdomain('default', '/var/www/recrui...')
#4 /var/www/recruit.tokushukai-is.com/html/wp-includes/class-wpdb.php(1815): wp_load_translations_early()
#5 /var/www/recruit.tokushukai-is.com/html/wp-includes/class-wpdb.php(734): wpdb->db_connect()
#6 /var/www/recruit.tokushukai-is.com/html/wp-includes/load.php(562): wpdb->__construct('tis_recruit', '7al7]rnlM[zCz', 'tis_recruit', 'localhost')
#7 /var/www/recruit.tokushukai-is.com/html/wp-settings.php(124): require_wp_db()
#8 /var/www/recruit.tokushukai-is.com/html/wp-config.php(97): require_o in /var/www/recruit.tokushukai-is.com/html/wp-includes/option.php on line 165

Fatal error: Uncaught Error: Call to a member function set() on null in /var/www/recruit.tokushukai-is.com/html/wp-includes/l10n.php:784
Stack trace:
#0 /var/www/recruit.tokushukai-is.com/html/wp-includes/l10n.php(872): load_textdomain('default', '/var/www/recrui...', 'ja')
#1 /var/www/recruit.tokushukai-is.com/html/wp-includes/class-wp-fatal-error-handler.php(47): load_default_textdomain()
#2 [internal function]: WP_Fatal_Error_Handler->handle()
#3 {main}
  thrown in /var/www/recruit.tokushukai-is.com/html/wp-includes/l10n.php on line 784