Fatal error: Uncaught Error: Undefined constant "Y" in /mnt/web412/b3/75/567875/htdocs/songshopcom/apartments/belegungscheck.php:7
Stack trace:
#0 {main}
  thrown in /mnt/web412/b3/75/567875/htdocs/songshopcom/apartments/belegungscheck.php on line 7