My password doesn't appear even though i enter the lockscreen password. Please Help Me.

[Windows Central Question]

I have a Microsoft Lumia 535 in windows 10. I use my phone and swipe up to enter the password and the password doesn't appear! It unlock wihout a password. I check tge pin, and it has a Pin there. I try to remove the pin and put the pin again. But it didn't work. Please help me? Thank you!