Accessing ISPConfig not from localhost

Yesterday i followed the UBUNTU PERFECT 6.10 Server setup tutorial.

I got everything running and ISPConfig installed. Today, while I was at work, I wanted to be able to login to ISPConfig but everytime I go to my ISPConfig URL it doesn't work. I get an "unexpected error" and it closes. I am using SSL.

:EDITING THIS IN: Here is the actual error
hans.dnsdojo.com has sent an incorrect or unexpected message. Error Code: -12263

How come it doesn't work? Do you guys need the link to it?

Thanks for the help
-Hans

 

Sorry for a double post. You can close this. I didn't put :81 at the end of the url.

Thanks for the help
Hans