error form message not working

Using Django Forms & APIs
1

def clean(self) does not work:

It allows user registration, but when I enter different passwords it does not display the error message. {{form.errors}}

from django import forms
from .models import Account


class RegistrationForm(forms.ModelForm):
    
    password = forms.CharField(widget=forms.PasswordInput(attrs={
        'placeholder': 'Ingrese Password',
        'class':'form-control',
    }))
    
    confirm_password = forms.CharField(widget=forms.PasswordInput(attrs={
        'placeholder': 'Confirmar Password',
        'class':'form-control',
    }))
    
    class Meta:
        model = Account
        fields = ['first_name', 'last_name', 'phone_number', 'email', 'password']
        
        
    def __init__(self, *args, **kwargs):
        super(RegistrationForm, self).__init__(*args, **kwargs)
        self.fields['first_name'].widget.attrs['placeholder'] = 'Ingrese nombre'
        self.fields['last_name'].widget.attrs['placeholder'] = 'Ingrese Apellidos'
        self.fields['phone_number'].widget.attrs['placeholder'] = 'Ingrese Telefono'
        self.fields['email'].widget.attrs['placeholder'] = 'Ingrese Email'
        for field in self.fields:
            self.fields[field].widget.attrs['class']='form-control'
            
            
    def clean(self):
        cleaned_data = super(RegistrationForm, self).clean()
        password = cleaned_data.get('password')
        confirm_password = cleaned_data.get('confirm_password')
        
        if password != confirm_password:
            raise forms.ValidationError('La contraseña o coincide')


   <div class="form-row">
                        <div class="form-group col-md-6">
                            <label>Crear password</label>
                            {{ form.password}}
                        </div> <!-- form-group end.// --> 
                        <div class="form-group col-md-6">
                            <label>Repetir password</label>
                            {{form.confirm_password}}
                        </div> <!-- form-group end.// -->  
                    </div>
                    <div class="form-group">
                        <button type="submit" class="btn btn-primary btn-block"> Registrar</button>
                        
                        {{form.errors}}
                        
                    </div> <!-- form-group// -->
2

Side note: When you post code here, please enclose the code between lines of three backtick - ` characters. This means you’ll have a line of ```, then your code, then another line of ```. This forces the forum software to keep your code properly formatted. (I’ve taken the liberty of fixing your original post for you.)

Please post your view that is handling this form, formatted as described above.