You can optionally add an email address to your account to be able to reset its password. The same email address can be used for multiple Aternos accounts.
Accounts created using a Google account cannot be linked to an additional email address.
If you choose not to add an email address, it is not possible to reset your account's password. You either need to remember the correct password for your account, or your account can no longer be accessed.
Changing your email address
You can add, change, or remove your email address in your account settings.