Go to the Host file , Located in 

C:\Windows\System32\drivers\etc\

Open the host file with a notepad and add this line at the bottom, after adding the line save the hostfile

127.0.0.1 www.contentparadise.com

This will fix the issue with the Popup

In some cases you might also get another error message this one is fixed by adding this line into the hostfile

127.0.0.1 www.producturlsupport.com

After adding these lines as both sites are down you will not get any error again ....