I am making a site in django. I make a vote and I want the voted user to get into the database, for which I am writingvoter.request.user... But because of this, this error occurs. How can I fix it?

django.db.utils.IntegrityError: UNIQUE constraint failed: registration_choose.id
[28 /Dec /2021 20:11:17] "GET /HTTP /1.1" 500 178087

views.py:

def home (request):
    value, created= Choose.objects.get_or_create (voter= request.user, pk= 1)
    context= {
        "value": value,
    }
return render (request, 'registration /home.html', context)
def black (request):
    value, created= Choose.objects.get_or_create (voter= request.user, pk= 1)
    if request.method== 'POST':
        select_action= request.POST ['choose']
        if select_action== 'black':
            value.count_black += 1
            value.save ()
        else:
            return render (request, 'registration /black.html', {"value": value})
        return redirect ("home")
    context= {"value": value}
    return render (request, 'registration /black.html', context)

models.py:

from django.contrib.auth.models import User
from django.db import models
class Choose (models.Model):
    count_black= models.PositiveIntegerField (default= 0, verbose_name= "black")
    count_white= models.PositiveIntegerField (default= 0, verbose_name= "white")
    count_purple= models.PositiveIntegerField (default= 0, verbose_name= "purple")
    voter= models.ForeignKey (User, null= True, verbose_name= 'User',
    on_delete= models.PROTECT)