Error message

• Notice: Undefined offset: 1 in theme_print_url_list() (regel 357 van /var/www/airallergy.sciensano.be/sites/all/modules/print/print.pages.inc).
• Notice: Undefined offset: 1 in theme_print_url_list() (regel 357 van /var/www/airallergy.sciensano.be/sites/all/modules/print/print.pages.inc).