Hello @Anonymous,
Thank you for your question.
Please never post a screenshot with your serial number nor post any other sensitive data on the Forum. It is an open place where everyone has access. I removed the data from your screenshot.
About your issue: do you have a subscription with this serial number? If yes, than you can use only the newest version (2020) as well as the 3 previous ones (2019, 2018, 2017). To use another version you would need to request a previous version. This is possible only in specific terms.
If you have a 2014 perpetual version, than you would need to check how many times the serial number has been activated. Only 2 activations on two different computers are allowed.
In any case I would suggest you to contact the registration team over this link and to ask them to provide you all information about your options: Installing or activating my product
Kindly choose 3ds Max + the newest version and "activation", in the correct field write your request. After clicking on "next" you will be able to sing-in.
If an agent is available open a chat. If not send an email.
Let me know if you need more help.
Best regards,
Michèle.
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Michèle Matzeck-Kunstman
Community Manager