I think it was a connection error. A few minutes before I tried connecting to Apache, I dowloaded all updates. I thought the connection to the internet was ok. So then I tried to connect to the apache from a nearby computer. And it didn't work, so I went back to the Linux computer and tried to go on google it said google.com couldn't be found....
Now I was really confused, because a few min. before that I could download updates.
So I decided to reconfigure my network settings, so far Thats what I have done. I will post soon if it works.