Why can't I register my product?
Serial no AQM-V2-172-275660682
Activation key XYXVbVAV_
It won't connect to the website.
You encounter that error because the website is actually impossible to reach. The domain doesn't display the original website of the developer, instead it shows a default page shown when a domain was just registered. It's possible that the old developers are out of business and someone else acquired it. It's not possible to update the software because there is no server to contact to.