Steam Authentication Error on redirect

[Totoual]

Hi there,

I download the csgo win Big source code and it is awesome.. I have a major issue allthought! I change the code in order not to have the .txt file in my server because I was not allowed to read it. I changed everything following the read me file and this tutorial http://pastebin.com/8ZCNq7f8http://pastebin.com/8ZCNq7f8

Everything is working on site.. But when I am trying to login I am redirected in Steam. When I put my username and pass is says that I must suply an API-Key. The problem is that i supplied the api-key in the folder of steam auth setting.php and in default.php . So I dont know what to do..

Thank you in advance.