Your account was probably locked due to trying the wrong password too many times. If you have made 3 incorrect login attempts in 1 minute, your account will be locked for 30 minutes. After 30 minutes, your account will be automatically unlocked and you can try logging again.

Additionally, please ensure that all of the devices such as cell phone or tablet you use to access your account have the correct password as your devices may try to access your account automatically.