خطأ في فورم تسجيل مستخدم جديد في مشروع دجانغو

مرحبا لدي خطأ في فورم تسجيل مستخدم جديد يظهر بعد تعبئة البيانات 

forms,py

class UserCreationForms(UserCreationForm):
   username=     forms.CharField(max_length=50)
   first_name=   forms.CharField(max_length=50)
   last_name=    forms.CharField(max_length=50)
   email=        forms.EmailField(max_length=50)
   password=     forms.CharField(widget=forms.PasswordInput(),min_length=8)
   conf_password=forms.CharField(widget=forms.PasswordInput(),min_length=8)
   class Meta: 
        model = User
        fields = ('username','first_name','last_name','email', 'password','conf_password')

//views.py

def signup(request):
    if request.method == 'POST':
        form = UserCreationForms(request.POST)
        if form.is_valid():
              form.save()
              username = form.cleaned_date.get('username')
              password = form.cleaned_date.get('password')
              user = authenticate(username=username , password=password)
        login(request,user)
        return redirect('accounts:INDEX')
    else:
        form = UserCreationForms()
        return render(request, 'user/signup.html',{
        'form':form
    })

    <div class="container">
        <div class="signup">
    
        <div class="col-md-9" >
            <form method="POST" enctype="multipart/form-data">
                <h4 class="auth-header">أنشاء حساب جديد</h4>
                {% csrf_token%}
                <div class="form-group">
              {{form.username}}
                </div>
                <div class="form-group">
                  {{form.first_name}}
                </div>
                <div class="row">
                    <div class="col-sm-6">
                        <div class="form-group">
                          {{form.last_name}}
                        </div>
                    </div>
                    <div class="col-sm-6">
                        <div class="form-group">
                          {{form.email}}
                    </div>
                </div>
                    <div class="col-sm-6">
                        <div class="form-group">
                          {{form.password}}
                        </div>
                    </div>
                    <div class="col-sm-6">
                        <div class="form-group">
                          {{form.conf_password}}
                    </div>
                </div>
                <div class="buttons-w"><button type="submit" class="btn btn-success">التسجيل</button></div>
    
            </form>
        </div>
        </div>
    </div>
    </div>