To change the email address associated with your Algor account you will need to:
Go to the 'Personal Data' section of your account from 'Manage Account'.
Click on the pencil icon.
Enter your new email address and click 'Confirm'.
You will receive an email about your new address. You will have to click on the link in the email and set your new password.
You will then be able to log in to Algor with the new account.