fix

lib/src/controllers/login_email_controller.dart

@@ -8,8 +8,8 @@ class LoginEmailController extends GetxController {
   final email = TextEditingController();
   final password = TextEditingController();
 
-  void loginUser(String email, String password) {
-    AuthenticationRepository.instance
+  Future<void> loginUser(String email, String password) async {
+    await AuthenticationRepository.instance
         .loginWithEmailAndPassword(email, password);
   }
 }

lib/src/controllers/phone_auth_controller.dart

@@ -7,7 +7,7 @@ class PhoneAuthController extends GetxController {
 
   final phoneNo = TextEditingController();
 
-  void phoneAuthentication(String phoneNo) {
-    AuthenticationRepository.instance.phoneAuthentication(phoneNo);
+  Future<void> phoneAuthentication(String phoneNo) async {
+    await AuthenticationRepository.instance.phoneAuthentication(phoneNo);
   }
 }

lib/src/controllers/register_controller.dart

@@ -8,8 +8,8 @@ class RegisterController extends GetxController {
   final email = TextEditingController();
   final password = TextEditingController();
 
-  void registerUser(String email, String password) {
-    AuthenticationRepository.instance
+  Future<void> registerUser(String email, String password) async {
+    await AuthenticationRepository.instance
         .createUserWithEmailAndPassword(email, password);
   }
 }