password manager can't use

Welcome to the community, leochenxw! 

Thanks for asking here and we apologize for our late response.

We also want to say sorry for the inconvenience this issue has caused you, but let me help you on this matter.

Here's a link on where you can see some troubleshooting steps that we can perform to resolve the issue: 
"Password Manager Service has stopped working" error message appears when opening Password Manager

Kindly read it carefully and carry out the steps as indicated.

We will wait for your update and we hope this helps.

Have a wonderful day! 

Best regards :)