"Changed android menifest and solved permission error for firebase"

android/app/src/main/AndroidManifest.xml

 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.example.food_app">
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <application
         android:label="food_app"
         android:name="${applicationName}"

lib/providers/product_provider.dart

 import 'package:cloud_firestore/cloud_firestore.dart';
 import 'package:flutter/foundation.dart';
+import 'package:flutter/cupertino.dart';
 import 'package:food_app/models/product_model.dart';
 
 class ProductProvider with ChangeNotifier {
@@ -9,7 +10,7 @@ class ProductProvider with ChangeNotifier {
   fetchHerbsProductData() async {
     List<ProductModel> newList = [];
     QuerySnapshot value =
-        await FirebaseFirestore.instance.collection("HerbsProduct").get();
+        await FirebaseFirestore.instance.collection("HerbsProduct ").get();
     value.docs.forEach(
       (element) {
         productModel = ProductModel(