diff --git a/django/library/views.py b/django/library/views.py
index 7baeef4..fabbcff 100644
--- a/django/library/views.py
+++ b/django/library/views.py
@@ -180,10 +180,17 @@ def favorite_quiz(request, pk):
         favorite.save()
     else:
        QivipQuizFavorite.objects.create(user=request.user, quiz=quiz, favorite=True, favorite_date=timezone.now())
-    
- 
+    """
+    referer = request.META.get('HTTP_REFERER')
+    if referer and 'library/' in referer:
+   
+        return redirect(request.META.get('HTTP_REFERER', 'library:overview_quiz'))
+    else:
+        return overview_quiz(request)
+    """
     return redirect(request.META.get('HTTP_REFERER', 'library:overview_quiz'))
     
+    
 # Neues Quiz erstellen
 @login_required
 def new_quiz(request):
diff --git a/django/templates/library/overview_quiz.html b/django/templates/library/overview_quiz.html
index 7a420cd..4c27130 100644
--- a/django/templates/library/overview_quiz.html
+++ b/django/templates/library/overview_quiz.html
@@ -104,6 +104,7 @@
           {% else %}
           <div class="h-full bg-gradient-to-r from-blue-500 to-blue-600"></div>
           {% endif %}
+          {% if user.is_authenticated %}
           {% if quiz.id not in favorite_quiz_ids %}
           <div class="absolute top-4 right-4 bg-white bg-opacity-60 text-white px-4 py-2 rounded-lg shadow-lg">
            
@@ -123,6 +124,7 @@
           </a>
           </div>
           {% endif %}
+          {% endif %}
         </div>
 
         
@@ -207,7 +209,7 @@
                   <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M2.458 12C3.732 7.943 7.523 5 12 5c4.478 0 8.268 2.943 9.542 7-1.274 4.057-5.064 7-9.542 7-4.477 0-8.268-2.943-9.542-7z" />
                 </svg>
               </a>
-              {% if quiz.user == request.user %}
+              {% if quiz.user_id == request.user %}
               <a href="{% url 'library:edit_quiz' quiz.id %}" 
                  class="p-1.5 bg-gray-100 hover:bg-gray-200 text-gray-700 rounded-lg transition-colors duration-200">
                 <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
@@ -285,7 +287,7 @@
           {% else %}
           <div class="h-full bg-gradient-to-r from-blue-500 to-blue-600"></div>
           {% endif %}
-          
+          {% if user.is_authenticated %}
           {% if quiz.favorite == False %}
          
           <div class="absolute top-4 right-4 bg-white bg-opacity-60 text-white px-4 py-2 rounded-lg shadow-lg">
@@ -306,6 +308,7 @@
           </a>
           </div>
           {% endif %}
+          {% endif %}
         </div>
 
         
@@ -390,7 +393,7 @@
                   <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M2.458 12C3.732 7.943 7.523 5 12 5c4.478 0 8.268 2.943 9.542 7-1.274 4.057-5.064 7-9.542 7-4.477 0-8.268-2.943-9.542-7z" />
                 </svg>
               </a>
-              {% if quiz.user == request.user %}
+              {% if quiz.user_id == request.user %}
               <a href="{% url 'library:edit_quiz' quiz.id %}" 
                  class="p-1.5 bg-gray-100 hover:bg-gray-200 text-gray-700 rounded-lg transition-colors duration-200">
                 <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
@@ -475,6 +478,7 @@
           {% else %}
           <div class="h-full bg-gradient-to-r from-blue-500 to-blue-600"></div>
           {% endif %}
+          {% if user.is_authenticated %}
           {% if quiz.id not in favorite_quiz_ids %}
           <div class="absolute top-4 right-4 bg-white bg-opacity-60 text-white px-4 py-2 rounded-lg shadow-lg">
            
@@ -494,6 +498,7 @@
           </a>
           </div>
           {% endif %}
+          {% endif %}
         </div>
 
         <!-- Content Section (Bottom) -->