Login issues can arise for several reasons.
If you're suddenly unable to log in and get invalid email or email already exist message. Please go to https://www.magellangps.com/customer/account/forgotpassword/
Once you reset your password in the email link you should be able to login to your account.
If you are still not able to login then there may be server issues on our end. In this case, wait a few hours and try to log in again. If your login issues persist, call us at 877-255-4161 or email us at firstname.lastname@example.org