Django credit card redaction app - - MultiValueDictKeyError

[drone4four]

Hello!

I’m trying to run a basic Django app which redacts a 16 digit number 
entered by the user. I had a it running a few minutes ago. I’m not sure 
what I changed, but now I am getting a MultiValueDictKeyError. I’ve triple 
checked every variable. The only dictionary in my project is in views.py at 
line 7. As far as I can tell, it’s all accurate and positioned correctly. I 
don’t recall changing this dictionary or any other operator around this 
line. I’m stumped. What would you people suggest? Have a look at my setup.


*Here is the error and traceback in full:* https://pastebin.com/QwSrmAJx 

Here is my urls.py:
from django.conf.urls import  include, url



from django.contrib import admin

from django.urls import path

from . import views


urlpatterns = [

   url(r'^admin/', admin.site.urls),

   url(r'^$', views.home, name='home'),



views.py:
from django.http import HttpResponse



from django.shortcuts import render


def home(request):

   number = request.GET['ccEntry']

   redacted_num = 'xxxx xxxx xxxx {}'.format(number[-4:])

   return render(request, 'home.html', {'number':number, 'redacted_num':
redacted_num})



home.html template:
<style></style>




<center>

<form action="{% url 'home' %}">

 <div>  <br>  <br>  <br>  <br>

   <h3>Enter your fake Chuckee Cheese Neptune credit card number!</h3>

   <input type="number" id="number" name="ccEntry" required placeholder=" " 
pattern=".{16,16}"/>

     <br>

     <br>

     <div class="requirements">

       Must be a 16 digit number.

     </div>

     <br>

   <input type="submit" value="Redact!!!"/>

       </div>

   </form>

   <br>

   <h3>Original Card Number:</h3>

   <br>

   {{ number }}

   <br>

   <h3>Redacted Card Number:</h3>

   <br>

   {{ redacted_num }}

   <br>

   <h3> Did this work?</h3>   

   <br>

</center>



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