Fatal error: Uncaught Error: Undefined constant "mon" in /home/hoteltagawa/www/inc/inc_cal.php:17
Stack trace:
#0 /home/hoteltagawa/www/inc/inc_calendar.php(51): require()
#1 /home/hoteltagawa/www/calendar.php(4): require_once('...')
#2 {main}
thrown in /home/hoteltagawa/www/inc/inc_cal.php on line 17