It seems like the issue you are experiencing is related to your account permissions and the recent change in your email address.
Here are a few steps you can try to resolve the issue:
- Clear your browser's cache and cookies and try activating the sandbox again.
- Try using a different browser or device to see if the issue persists.
- Verify that your account has the necessary permissions to access the sandbox environment. You may need to check your Azure account settings or contact your administrator for assistance.
- If you recently changed your primary alias, it's possible that this change may have affected your account's access to certain resources. You may need to update your account information or verify your identity through the new email address.
If none of these steps resolve the issue, I recommend reaching out to Azure support for assistance. They may be able to provide specific guidance based on your account and the sandbox activation process.