fix

src/app/app-routing.module.ts

@@ -18,6 +18,10 @@ const routes: Routes = [
   {
     path: 'about',
     loadChildren: () => import('./about/about.module').then(m => m.AboutPageModule)
+  },
+  {
+    path: 'blog',
+    loadChildren: () => import('./blog/blog.module').then( m => m.BlogPageModule)
   }
   
 ];