Button "Read More" Does not work

Hi, please I need help with you theme "GameFun". I have a problem with "Read More" button, when I click it so rest of the article does not prove, but show me "Error 404 | Nothing found! Sorry, but you are looking for something that is not here." I don't know why, because when I looked on web yesterday so it worked perfectly. Please help if you can.

Btw: Sorry for my english ;-)

Hi!
Could you write here url of your site?
What happens when you click on a title of articles?

It's now ok.. I'm by mistake change default link.. Sorry :-)