identity user login failed

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I have really big problem. I'm tried to login my AspCore project. But i have always this issue.I was on this a month

this is find my user with all properties anythink is null

AppUser user = _userManager.Users.Where(a=>a.UserName==Input.Username).FirstOrDefault();  

but when i try signin with this

 var result = await _signInManager.PasswordSignInAsync(user, Input.Password, Input.RememberMe, lockoutOnFailure: false);  
always i taking this fail  

Fail image:


Guyz pls help me. Anyone wants to my project i can upload githup too

Microsoft Identity Manager
Microsoft Identity Manager
A family of Microsoft products that manage a user's digital identity using identity synchronization, certificate management, and user provisioning.
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