Fatal error: Uncaught Error: Undefined constant "DEFAULT_CHAR_SET" in /home/xs0521sagara/kokorojp.net/public_html/shop_mail/inc.php:18
Stack trace:
#0 /home/xs0521sagara/kokorojp.net/public_html/shop_mail/mail.php(22): include_once()
#1 {main}
thrown in /home/xs0521sagara/kokorojp.net/public_html/shop_mail/inc.php on line 18