add condition for checking resolver_match existance in core context_processors

core/context_processors.py

@@ -4,7 +4,9 @@ from products.context_processors import product_categories, product_detail
 
 
 def breadcrumbs(request):
-    view_name = request.resolver_match.view_name
+    view_name = 'index:index'
+    if request.resolver_match:
+        view_name = request.resolver_match.view_name
     crumbs = {
         'breadcrumb': {},
         'is_index': view_name == 'index:index'