Why does flutter app always crash after debugging - laravel

Question

this is the main.dart file if there is anyone can help me. after crashing it stuck on this message :
Launching lib\\main.dart on sdk gphone x86 arm in debug mode...
lib\\main.dart:1
√ Built build\\app\\outputs\\flutter-apk\\app-debug.apk.
like this
import 'package:dio/dio.dart';
class BaseUrl {
static String url = 'https://awad.mohatim.tech/public/api';
static String real = 'https://awad.mohatim.tech/api/';
static String local = 'http://127.0.0.1:8000/api/';
}
Map<String, String> headers = {
'Accept': 'application/json',
'Content-Type': 'application/json',
};
class DioHelper {
static final BaseOptions _options = BaseOptions(
baseUrl: BaseUrl.real,
headers: headers,
validateStatus: (status) {
return status! < 500;
},
);
static final Dio _dio = Dio(_options);
// get login # data = email and password
static Future getLogin({required Map<String, dynamic> data}) async {
try {
Response response = await _dio.post('login', data: data);
return response;
} on DioError catch (e) {
print(e.message);
}
}
// data = name email phone paswword
static Future register({required Map<String, dynamic> data}) async {
try {
Response response = await _dio.post('register', data: data);
return response;
} on DioError catch (e) {
print(e.message);
}
}
// public request
static Future post({required String endpoint, required dynamic data}) async {
Map<String, String> headers = {
'Accept': 'application/json',
'Content-Type': 'application/json',
};
try {
Response response = await _dio.post(endpoint, data: data, options: Options(headers: headers));
return response;
} on DioError catch (e) {
print(e.message);
}
}
// public request
static Future get({required String endpoint}) async {
try {
Response response = await _dio.get(endpoint);
return response;
} on DioError catch (e) {
print(e.message);
}
}
static Future getWithToken({required String endpoint, required String token}) async {
Map<String, String> headers = {
'Accept': 'application/json',
'Content-Type': 'application/json',
'Authorization': 'Bearer $token',
};
try {
Response response = await _dio.get(endpoint, options: Options(headers: headers));
return response;
} on DioError catch (e) {
print(e.message);
}
}
static Future postWithToken({required String endpoint, required dynamic data, required String token}) async {
Map<String, String> headers = {
'Accept': 'application/json',
'Content-Type': 'application/json',
'Authorization': 'Bearer $token',
};
try {
Response response = await _dio.post(endpoint, data: data, options: Options(headers: headers));
return response;
} on DioError catch (e) {
print(e.message);
}
}
static Future postImage({required String endpoint, required FormData data, required String token}) async {
Map<String, String> headers = {
'Accept': 'application/json',
'Content-Type': 'application/json',
'Authorization': 'Bearer $token',
};
try {
Response response = await _dio.post(endpoint, data: data, options: Options(headers: headers));
return response;
} on DioError catch (e) {
print(e.message);
}
}
}
I'm trying to connect the app with Laravel admin panel throw API