Occasionally, you might get logged out unexpectedly, or be on your coach account and then suddenly be in your "freebie client" account.
Here are two reasons this may be happening:
1.) You have the same browser open doing multiple things. Your coach account was open, and then you also tried to log in as your freebie client in a new window. Then you clicked back in your coach account and the system said "hey, you're not a coach, you're logged in as this client" and redirected you accordingly.
Try logging into your coach and client accounts one at a time, or use two different browsers (e.g. FireFox logged in as a coach, Chrome logged in as your freebie client) or a private/incognito browser window.
2.) For security reasons, the system will log you out automatically if you are inactive for a while. Just log in again.