unknown environment. contact admin.<br />
<b>Fatal error</b>:  Uncaught Error: Undefined constant &quot;DEBUG_FLAG&quot; in /var/www/html/3_gakusyu_plaza/30_yoyaku/inc/config.php:158
Stack trace:
#0 /var/www/html/3_gakusyu_plaza/30_yoyaku/yoyaku_cancel.php(27): require_once()
#1 {main}
  thrown in <b>/var/www/html/3_gakusyu_plaza/30_yoyaku/inc/config.php</b> on line <b>158</b><br />