Fatal error
: Uncaught Error: Undefined constant "ref" in /var/www/html/fbg.nl/.htphpinc.php:104 Stack trace: #0 /var/www/html/fbg.nl/linkterug.php(7): hhead() #1 {main} thrown in
/var/www/html/fbg.nl/.htphpinc.php
on line
104