Error provider

lib/states/mobile.dart

@@ -14,12 +14,14 @@ class MyAppStateMobile extends State<MyApp> {
         final isLoading = provider.isLoading;
         return ChangeNotifierProvider(
           create: (_) => CartProvider(),
-          builder: (context, __) => MaterialApp(
-            title: 'GymLink Module',
-            theme: theme,
-            debugShowCheckedModeBanner: false,
-            home: MainPage(isLoading: isLoading),
-          ),
+          builder: (context, __) => isLoading
+              ? const Center(child: CircularProgressIndicator())
+              : MaterialApp(
+                  title: 'GymLink Module',
+                  theme: theme,
+                  debugShowCheckedModeBanner: false,
+                  home: const MainPage(),
+                ),
         );
       },
     );