diff --git a/GeneralApp/admin.py b/GeneralApp/admin.py
index 9862f97..74e105a 100644
--- a/GeneralApp/admin.py
+++ b/GeneralApp/admin.py
@@ -136,7 +136,7 @@ class Admin_StaticPage(SuperModelAdmin, Admin_Trans_BaseModelViewPage):
         if request.user.is_superuser:
            return True
 
-        if obj.url in ('main', 'contacts'):
+        if not obj or obj.url in ['main', 'contacts']:
             return False
 
 admin.site.register(StaticPage,Admin_StaticPage)
@@ -191,7 +191,7 @@ class Admin_Block(Admin_Trans_BaseModelViewPage):
         if request.user.is_superuser:
            return True
 
-        if obj.name in ('About US', 'machines', 'works'):
+        if not obj or obj.url in ['main', 'contacts']:
             return False
 
     def has_add_permission(self, request):
diff --git a/PortfolioApp/admin.py b/PortfolioApp/admin.py
index 341ccba..7734edb 100644
--- a/PortfolioApp/admin.py
+++ b/PortfolioApp/admin.py
@@ -79,7 +79,7 @@ class Admin_Project(SuperModelAdmin, Admin_Trans_BaseModelViewPage):
         if request.user.is_superuser:
            return True
 
-        if obj.url in ('main', 'spec_technics', 'works'):
+        if not obj or obj.url in ['main', 'contacts']:
             return False
 
 admin.site.register(Project, Admin_Project)
\ No newline at end of file
diff --git a/ServicesApp/admin.py b/ServicesApp/admin.py
index adc5293..2b82907 100644
--- a/ServicesApp/admin.py
+++ b/ServicesApp/admin.py
@@ -101,7 +101,7 @@ class Admin_Section(SuperModelAdmin, Admin_Trans_BaseModelViewPage):
         if request.user.is_superuser:
            return True
 
-        if obj.url in ('main', 'spec_technics', 'works'):
+        if not obj or obj.url in ['main', 'contacts']:
             return False
 
 admin.site.register(Section,Admin_Section)
@@ -158,7 +158,7 @@ class Admin_Service(SuperModelAdmin, Admin_Trans_BaseModelViewPage):
         if request.user.is_superuser:
            return True
 
-        if obj.url in ('main', 'spec_technics', 'works'):
+        if not obj or obj.url in ['main', 'contacts']:
             return False
 
 admin.site.register(Service, Admin_Service)