Fatal error: Uncaught TypeError: mysqli_fetch_array(): Argument #1 ($result) must be of type mysqli_result, bool given in /customers/f/3/3/flurksefeesten.be/httpd.www/funrun/functions.php:60
Stack trace:
#0 /customers/f/3/3/flurksefeesten.be/httpd.www/funrun/functions.php(60): mysqli_fetch_array(false)
#1 /customers/f/3/3/flurksefeesten.be/httpd.www/funrun/dagReservatie.php(12): toonDatumByID('1')
#2 {main}
  thrown in /customers/f/3/3/flurksefeesten.be/httpd.www/funrun/functions.php on line 60