I've been using Draftsight since 2019 or even before. 

My laptop recently stopped working(Lenovo z510, so I believe it was expected at its age) , necessitating a reinstallation of DraftSight Standard. Unfortunately, I have been unable to find a way to download it from your site. In my attempts to resolve this, I downloaded DraftSight Professional, but I have failed to activate it using my existing license code. Could you please guide me on how to reinstall DraftSight Standard successfully?

I cannot download it from anywhere, all I have is confirmation of payment(once a year subscription)  and license code. 

Also i got error 3/0 license or something like that, but after doing exactly the same what's in QA and it's not working.

Where I can download Draftsight standard?