update

core/settings.py

@@ -55,9 +55,6 @@ MIDDLEWARE = [
     'django.middleware.clickjacking.XFrameOptionsMiddleware',   
 ]
 
-if os.getenv('DEMO_MODE') == 'True':
-    MIDDLEWARE.append('core.middleware.middleware.DemoModeMiddleware')
-
 if os.getenv("WHITENOISE_CONFIG") == "True":
     MIDDLEWARE.insert(1, 'whitenoise.middleware.WhiteNoiseMiddleware')
     

templates/dashboard/base.html

@@ -346,7 +346,6 @@
     <script src="{% static 'admin/assets/js/sweetalert2.js' %}"></script>
     <script src="{% static 'admin/assets/js/script.js' %}"></script>
     <script src="{% static 'admin/assets/js/theme-customizer/customizer.js' %}"></script>
-    {% include "error/demo_mode.html" %}
     <!-- Plugin used-->
     <script>new WOW().init();</script>
   </body>