Your account may become blocked as a result entering an incorrect password too many times.
If your account has been blocked, you will see the below message when you attempt to log into the platform:
You will receive an email with instructions on how to unblock your account
Once you select the 'Unblock button, you will observe a confirmation that this has worked, and your account has been unblocked.
If you cannot remember your password, please follow the steps outlined here.