I registered my Vegas Movie Studio 15 and Magix video sound cleaning lab bundle package with 2 different email adresses and now installing Vegas it isn't working now.
A couple of suggestions from Magix
https://www.vegascreativesoftware.info/us/forum/error-code-24--111529/#ca689182
https://www.vegascreativesoftware.info/us/forum/changing-email-address--110888/#ca685849
From Dr Zen
And: support request.
It seems I have tried all suggested solutions and have never downloaded pirated software. I did contact customer support so we'll see how long it takes to get support. This issue is really unacceptable and I can no longer tolerate poor customer support.