title: Error while not authenticate users try to see the content
body: <p><strong>DoesNotExist at /
  Account matching query does not exist.</strong></p>
  <p>I got error while the not authenticate user try to see the video
  I need to let the not authenticate user can to see the content videos but absolutely can't to post any videos</p>
  <p>The model</p>
  <pre><code>class Video(models.Model):
  author = models.ForeignKey(Account, on_delete=models.CASCADE)
  video = models.FileField(upload_to='post-videos')
  title = models.CharField(max_length=100)
  description = models.TextField(null=True, blank=True)
  allow_comments = models.BooleanField(default=False)
  is_public = models.BooleanField(default=False)
  created_date = models.DateTimeField(auto_now_add=True)
  modified_date = models.DateTimeField(auto_now=True)
  publish_date = models.DateTimeField(null=True, blank=True)
  </code></pre>
  <p>The form</p>
  <pre><code>class Video_form(forms.ModelForm):
  class Meta:
      model = Video
      fields = ('title', 'description', 'video')
  </code></pre>
  <p>The views</p>
  <pre><code>def home_screen_view(request, *args, **kwargs):
  all_videos = Video.objects.all()
  V_form = Video_form()
  video_added = False
  account = Account.objects.get(username=request.user)
  if 'submit_v_form' in request.POST:
      print(request.POST)
      V_form = Video_form(request.POST, request.FILES)
      if V_form.is_valid():
          instance = V_form.save(commit=False)
          instance.author = account
          instance.save()
          V_form = Video_form()
          video_added = True
  
  contex = {
      'all_videos': all_videos,
      'account': account,
      'V_form': V_form,
      'video_added': video_added
  }
  return render(request, &quot;personal/home.html&quot;, contex)
  </code></pre>
  <p>The Html template</p>
  <pre><code>{% if request.user.is_authenticated %}
  &lt;div class=&quot;container&quot;&gt;
  
   &lt;div class=&quot;mt-5&quot;&gt;
    &lt;form action=&quot;.&quot; method=&quot;post&quot; enctype=&quot;multipart/form-data&quot;&gt;
      {% csrf_token %}
      {{V_form}}
      &lt;button class=&quot;btn btn-success btn-lg&quot; name=&quot;submit_v_form&quot;&gt;Upload&lt;/button&gt;
  
    &lt;/form&gt;
  &lt;/div&gt;
  
   {% endif %}
  &lt;hr&gt;
  
      {% for x in all_videos %}
      &lt;h3 class=&quot;text-center mt-2 mb-2&quot;&gt;{{x.title}}&lt;/h3&gt;
      &lt;video class=&quot;embed-responsive embed-responsive-16by9&quot; controls=&quot;controls&quot; &gt;
          &lt;source src=&quot;{{x.video.url}}&quot; type=&quot;video/mp4&quot; /&gt;
        &lt;/video&gt;
      {% endfor %}
  </code></pre>