Dear Keesiemeijer, would you kindly remove the following link also or at least the URL
http://wordpress.org/support/topic/security-setting-issue-website-not-being-displayed?replies=3
It isn’t very professional for a website to be describing potential faults publicly
Hi, I am unfortunately not the programmer, but I have been told that it should be okay, although there are those few errors and warning in the validator. So they cannot be the issue apparently.