If you recall the password associated with your account, you are welcome to login and change the email address on file.
If you do not recall the password, and no longer have access to the email address, unfortunately there's nothing we can do to allow access to your prior account.
Unless you can send/ receive emails from the current email address on your account, we have no way of verifying your prior ownership of that account.
You are always welcome to set up a new account here.
For additional assistance, please email support@code.org