Your account might have been blocked for one reason only: when attempting to log into your account, you entered an incorrect password five times in a row.
You can enter your account password again after a one-hour lockout period.
Please keep in mind that when creating your password, you were required to meet the following requirements:
Take this information into account when trying to remember your password.
If you can't recall your password, you can always restore it using the password recovery function. For more information on password recovery, please refer to this article.