我得到以下错误AttributeError：经理不在;在我的django项目中，当我尝试点击注册按钮时，'auth. user'已经被替换为'accounts.user'，当我做了发送电子邮件和密码到后台的注册按钮。我有一个acoounts应用程序，其中文件中有以下代码：
backend.py:

from django.contrib.auth.backends import ModelBackend
from django.contrib.auth import get_user_model

class EmailBackend(ModelBackend):
    def authenticate(self, request, email=None, password=None, **kwargs):
        User = get_user_model()
        try:
            user = User.objects.get(email=email)
        except User.DoesNotExist:
            return None
        else:
            if user.check_password(password):
                return user
        return None

models.py:

from django.contrib.auth.models import AbstractBaseUser, BaseUserManager, PermissionsMixin
from django.contrib.auth import get_user_model
from django.db import models


class CustomUserManager(BaseUserManager):
    def create_user(self, email, password=None, **extra_fields):
        if not email:
            raise ValueError('The Email field must be set')
        email = self.normalize_email(email)
        user = self.model(email=email, **extra_fields)
        user.set_password(password)
        user.save(using=self._db)
        return user

    def create_superuser(self, email, password=None, **extra_fields):
        extra_fields.setdefault('is_staff', True)
        extra_fields.setdefault('is_superuser', True)
        return self.create_user(email, password, **extra_fields)

class User(AbstractBaseUser, PermissionsMixin):
    email = models.EmailField(unique=True)
    is_active = models.BooleanField(default=True)
    is_staff = models.BooleanField(default=False)
    
    USERNAME_FIELD = 'email'
    
    objects = CustomUserManager()

    def __str__(self):
        return self.email

views.py:

from django.shortcuts import render, redirect
from django.contrib.auth.forms import UserCreationForm
from django.contrib.auth import login as auth_login
from django.contrib.auth import authenticate
from .models import User
from django.contrib import messages

def register(request):
    if request.method == 'POST':
        form = UserCreationForm(request.POST)
        if form.is_valid():
            form.save()
            messages.success(request, 'Registration successful. You can now log in.')
            return redirect('login')
    else:
        form = UserCreationForm()
    return render(request, 'register.html', {'form': form})

def login_view(request):
    if request.method == 'POST':
        email = request.POST['email']
        password = request.POST['password']
        user = authenticate(request, username=email, password=password)
        if user is not None:
            auth_login(request, user)
            return redirect('homepage')
        else:
            messages.error(request, 'Invalid email or password')
    return render(request, 'login.html')

如果你需要任何其他的代码，我会发送，但这些是主要的文件，我猜。谢谢你