When you hold CTRL key when clicking next in activation menu you get a manual registration menu but i think you need to request a new licence code i'm affraid. The whole server works bad of X5 by the way.

I'm very sorry for the inconvenience.
Our server is a bit slow but it is now working, therefore please try again now to install your program.

If you still aren't able to, please proceed with the manula activation and I will help you.
In order to install manually, please preoceed as follows:

    Start the program's registration process
    Add all your data as you did before
    Press the CTRL button on your keyboard and the next command in the program window with your mouse.
    in the right corner above you will see a file which needs to be saved. This file contains all information about manual unlocking and it contains the computer code, too.
    please save this file and forward this file in a zip folder to me

We will give you your new unlock code as soon as possible.
Thank you!