Bahadir, if you go to your profile (top right this page), under download you will find the installable and under licensed your licence key.

But be aware that for the past 2 hours I could not log in, so your activation problem may have been transient.

Hi there, 

please follow Esahc's suggestion and please download the program from this page: https://helpcenter.websitex5.com/en/community/users/415844/downloads

If you get an error message while activating the program, please post a screenshot here, so we can help you further.

Thanks! Kind regards.