please check the New Software Download Experience announcement;
Access to My Software is limited to users who have the ability to create support requests in My Support Portal. Someone from our Accounts Support Team will reach out to you directly to address your specific access issue.
The latest Pega Platform™ Personal Edition is available to all clients and partners. If you are registered on Pega Community with a service provider e-mail domain (e.g. @gmail.com, @yahoo.com, etc.), you will not have access to Personal Edition, or licensed software.
Your profile here shows you are logged against 'Tata' so your email should be linked to the valid domain.
Please log into your My Pega profile and edit to remove any invalid email from profile so that you can determine you are registered as per your Support contact administrator details.
As this appears to be an account privilege issue, please contact[email protected]as displayed in the error message you have provided.