My progressed cleared, taken back to start all over with task all locked

So as at Monday 9th, I was tackling task 20, had some issues but decided to redo the task later. On coming back yesterday to the platform to continue with the task to my greatest suprise, I was asked to login or would i say register as if I am starting afresh all my past progress was deleted. It’s sadnening that I had to start afresh again, and to make matters worse, the tasks are locked as i have completed just 2 task and they are still locked. I dont know if there is an error somewhere that .cleared my progress but I would love to continue with my previous progress and if that’s not the case unlock the tasks. Please someone fill me in on what’s happening and how i should go about it. @rob_kodekloud

All you need to do here is log back in again; logins do expire. Once you do that, your previous progress will reappear.