Create a new version of paste:

#include<iostream>
#include<stdio.h>
#include<cstdlib>
#include<windows.h>


#define PL 1
#define ENG 2
int    AskForLangugage();
void   MenuPL();
void   MenuEng();
bool   DoYouWantEndProgram();
int lang = 1;
using namespace std;
namespace menupl
{
	void internet(int a, int b);
	void przegladarka(int a, int b);
	void screen(int a);
	void PowerButton(int a, int b);
}
namespace menueng
{
	void internet(int a, int b);
	void przegladarka(int a, int b);
	void screen(int a);
	void PowerButton(int a, int b);
}

int main()
{
	bool  bWork = true;
	while (bWork)
	{
		lang = AskForLangugage();
		if (lang == PL)
		{
			MenuPL();
		}
		else if (lang == ENG)
		{
			MenuEng();
		}
		else { cout << "Blad wyboru jezyka \n"; }
		bWork = DoYouWantEndProgram();
	}
	return 0;
}
int AskForLangugage()
{
	string odp;
	bool sprawdz = true;
	do
	{
		system("cls");
		cout << "Menu: " << endl;
		cout << "[1] PL" << endl;
		cout << "[2] ENG" << endl;
		cout << "Prosze wybrac jezyk: "; cin >> odp;
		if (odp == "1")
		{
			sprawdz = false;
			return 1;
		}
		else if (odp == "2")
		{
			return 2;
			sprawdz = false;
		}
		else if ((odp != "1") && (odp != "2"))
		{
			cout << "Masz podac liczbe nie znak " << endl;
			system("pause");
			sprawdz = true;

		}

	} while (sprawdz);


}
bool DoYouWantEndProgram()
{

	return false;
}
void   MenuPL()
{

	int menu, odp, odp1;
	for (;;)
	{
		system("cls");
		cout << "Menu polskie" << endl;
		cout << endl << endl;
		cout << "\t \t \t \t  Twoje Centrum pomocy Hello World , Wita!" << endl;
		cout << "Jaki masz problem ? " << endl;
		cout << "Spojrz na menu! I wybierz swoj problem " << endl;
		cout << "[1] Problemy z internetem, lub brak internetu" << endl;
		cout << "[2] Przegladarka nie chce sie wlaczyc" << endl;
		cout << "[3] Pojawiajace sie artefakty na monitorze" << endl;
		cout << "[4} Nie dzialajacy przycisk wylaczania Pc " << endl;
		cout << "[5] Zakoncz Program" << endl;
		cout << "[6]Wybierz ponownie jezyk/Select language again" << endl;
		cout << " Wybierz z naszego menu: ";
		cin >> menu;
		switch (menu)
		{
		case 1:
			cout << endl;
			cout << " Wybrales opcje numer [1] Problemy z internetem, lub brak internetu, chetnie ci pomozemy " << endl << endl;
			cout << "Sprawdz czy masz wlaczony router :)" << endl;
			cout << "[1] Tak, mam wlaczony" << endl;
			cout << "[2] Nie, nie jest wlaczony" << endl;
			cout << "Wybierz : ";
			cin >> odp;
			cout << endl;
			cout << "Czy problem znikl?  " << endl;
			cout << "[1]Tak" << endl;
			cout << "[2]Nie" << endl;
			cout << "Wybierz ponownie: ";
			cin >> odp1;

			menupl::internet(odp, odp1);


			break;
		case 2:
			cout << endl;
			cout << " Wybrales opcje numer [2] Przegladarka nie chce sie wlaczyc, chetnie ci pomozemy" << endl << endl;
			cout << "Po pierwsze, zorientuj sie, gdzie lezy problem" << endl << endl;
			cout << "Sprawdz czy w task manager nie masz wlaczonych kilka przegladarek! " << endl;
			cout << "[1] Tak, jest wlaczonych kilka przegladarek " << endl;
			cout << "[2] Nie, nie ma zadnych wlaczoncyh" << endl;
			cout << "Powiedz jak wyglada sprawa: ";
			cin >> odp;

			cout << endl;
			cout << "Problem nadal wystepuje?: " << endl;
			cout << "[1]Tak" << endl;
			cout << "[2]Nie" << endl;
			cout << "Wybierz : ";
			cin >> odp1;

			menupl::przegladarka(odp, odp1);

			break;
		case 3:
			cout << endl;
			cout << "Wybrales opcje numer [3] Pojawiajace sie artefakty na monitorze" << endl << endl;
			cout << "Sprawdz swoja karte graficzna , czy problem lezy po jej stornie" << endl;
			cout << "[1]Tak" << endl;
			cout << "[2] Nie" << endl;
			cout << "Wybierz prosze : ";
			cin >> odp;

			menupl::screen(odp);

			break;
		case 4:
			cout << endl;
			cout << "Wybrales opcje numer[4] Nie dzialajacy przycisk wylaczania Pc" << endl;
			cout << "Sprawdz czy nie masz uszkodzonej obudowy od PC" << endl;
			cout << "[1]Tak jest uszkodzona" << endl;
			cout << "[2]Nie, nie jest uszkodzona" << endl;
			cout << "wybierz :";
			cin >> odp;

			cout << "Chcesz sam podalczyc kontrolki od przycisku POWER?" << endl;
			cout << "[1]Tak" << endl;
			cout << "[2]Nie" << endl;
			cout << "Wybierz: ";
			cin >> odp1;

			menupl::PowerButton(odp, odp1);

			break;
		case 5:
			cout << "Dziekujemy za skorzystanie z naszego programu! Mam Nadzieje, ze udalo nam ci sie pomoc :) " << endl;
			exit(0);

			break;
		case 6:
			cout << "Chcesz wrocic do menu wyboru jezyka? /Do you want to return to the language selection menu?" << endl;
			system("pause");
			main();
			break;


		default:
			cout << "Nie ma takiej opcji w menu!" << endl;
			system("pause");
			break;
		}
	}

}
void   MenuEng()
{

	cout << "Menu English" << endl;
	int menu, odp, odp1;
	for (;;)
	{
		system("cls");
		cout << "Menu English	" << endl;
		cout << endl << endl;
		cout << "\t \t \t \t  Your Help Center MyPc , Welcom!" << endl;
		cout << "What is your problem? " << endl;
		cout << "Look at the menu! And choose your problem" << endl;
		cout << "[1]Problems with the internet, or no internet " << endl;
		cout << "[2] The browser won't turn on" << endl;
		cout << "[3] Artifacts appearing on the monitor" << endl;
		cout << "[4} Inactive Pc off button " << endl;
		cout << "[5] End Program" << endl;
		cout << "[6]Wybierz ponownie jezyk/Select language again" << endl;
		cout << " choose from our menu: ";
		cin >> menu;
		switch (menu)
		{
		case 1:
			cout << endl;
			cout << " You have chosen options number [1] Problems with the internet, or no internet, we will be happy to help you " << endl << endl;
			cout << "Check if your router is turned on :)" << endl;
			cout << "[1] Yes, I have it turned on" << endl;
			cout << "[2] No, it is not enabled" << endl;
			cout << "Select : ";
			cin >> odp;

			cout << "Is the problem gone?  " << endl;
			cout << "[1]Yes" << endl;
			cout << "[2]No" << endl;
			cout << "Select again: ";
			cin >> odp1;

			menueng::internet(odp, odp1);


			break;
		case 2:
			cout << endl;
			cout << " You have chosen option number[2] Your browser won't turn on, we'll be happy to help you" << endl << endl;
			cout << "First, find out where the problem lies" << endl << endl;
			cout << "Check if your browser has several browsers enabled!" << endl;
			cout << "[1] Yes, several browsers are enabled " << endl;
			cout << "[2] No, there are none included" << endl;
			cout << "Tell me what the case looks like: ";
			cin >> odp;

			cout << endl;
			cout << "The issue still exists?: " << endl;
			cout << "[1]Yes" << endl;
			cout << "[2]No" << endl;
			cout << "Select : ";
			cin >> odp1;

			menueng::przegladarka(odp, odp1);

			break;
		case 3:
			cout << endl;
			cout << "You have chosen option number [3] Artifacts appearing on the monitor" << endl << endl;
			cout << "Check your graphics card to see if it's a problem" << endl;
			cout << "[1] Yes" << endl;
			cout << "[2] No" << endl;
			cout << "Select again : ";
			cin >> odp;

			menueng::screen(odp);

			break;
		case 4:
			cout << endl;
			cout << "You have chosen option number [4] Inactive Pc off button" << endl;
			cout << "Check if you have a damaged case from the PC" << endl;
			cout << "[1]Yes it is broken" << endl;
			cout << "[2]No, it's not broken" << endl;
			cout << "Select :";
			cin >> odp;

			cout << "You want to connect the POWER button controls yourself?" << endl;
			cout << "[1] Yes" << endl;
			cout << "[2] No" << endl;
			cout << "Select: ";
			cin >> odp1;

			menueng::PowerButton(odp, odp1);

			break;
		case 5:
			cout << "Thank you for using our program! I hope you were able to help :) " << endl;
			exit(0);

			break;
		case 6:
			cout << "Chcesz wrocic do menu wyboru jezyka? /Do you want to return to the language selection menu?" << endl;
			system("pause");
			main();

			break;
		default:
			cout << "There is no such option in the menu!" << endl;
			system("pause");
			break;
		}
	}

}
void menupl::internet(int a, int b)
{
	if (a == 1)
	{
		cout << endl;
		cout << "Skontaktuj sie z dostawca internetu, badz sprawdz czy masz podlaczony kabel od internetu :) " << endl << endl;
	}
	else
	{
		cout << "Musisz wlaczyc router! " << endl << endl;

	}
	if (b == 1)
	{
		cout << endl;
		cout << "Cieszymy sie ze moglismy pomoc  :) !" << endl << endl;
	}
	else
	{
		cout << "Skontaktuj sie z dostawca swojego internetu, jest to wymgane!" << endl;

	}
	system("pause");


}
void menupl::PowerButton(int a, int b)
{
	if (a == 1)
	{
		cout << endl;
		cout << "Prosze o  sprawdzneie kontrolek na plycie glownej" << endl;
	}
	else
	{
		cout << "Jesli nie jest uszkodzona to sprawdz: \n -podlaczenie kontorlek w plycie glownej \n -sprawdz czy dobrze podlaczyles kontrolki \n " << endl;

	}
	if (b == 1)
	{
		cout << "Przekieruje cie do storny ktora ci pomoze :)" << endl;
		system("start chrome.exe https://www.pcformat.pl/Jak-podlaczyc--przedni-panel,a,2630");

	}
	else
	{
		cout << "Udaj sie do informatyka niech on to zrobi za ciebie :)" << endl;
		cout << "Ps. 50 zl w kieszeni lepiej miej :)" << endl;
	}
	system("pause");

}
void menupl::przegladarka(int a, int b)
{
	if (a == 1)
	{
		cout << "Prosze o ich wylaczenie : -) i sprawdzeniu czy dziala" << endl;

	}
	else
	{
		cout << "Uruchom ponownie komputer i sprawdz czy przegladarka dziala!" << endl;

	}
	if (b == 1)
	{
		cout << "Zainstaluj ponownie przegladarke, badz zainstaluj inna :)" << endl;

	}
	else
	{
		cout << "Cieszymy sie ze moglismy pomoc!" << endl;

	}
	system("pause");
}
void menupl::screen(int a)
{
	if (a == 1)
	{
		cout << "Jesli problem lezy po stornie karty graficnzej. \n Prosze o jej jak najszybszy zakup i wymianie karty.graf " << endl;

	}
	else
	{
		cout << "Jesli to nie wina karty graficznej, sprawdz monitor, badz skontaktuj sie z informatykiem w twoim miescie" << endl;
	}
	system("pause");

}

void menueng::internet(int a, int b)
{
	if (a == 1)
	{
		cout << endl;
		cout << "Contact your internet provider, be sure you have an internet cable connected :) " << endl << endl;
	}
	else
	{
		cout << "You must turn on the router! " << endl << endl;

	}
	if (b == 1)
	{
		cout << endl;
		cout << "We are glad that we could help :) !" << endl << endl;
	}
	else
	{
		cout << "Contact your internet provider, this is required!" << endl;

	}
	system("pause");


}
void menueng::PowerButton(int a, int b)
{
	if (a == 1)
	{
		cout << endl;
		cout << "Please check the lights on the main board" << endl;
	}
	else
	{
		cout << "If it is not damaged, check: \ n - connecting the counter in the main board \ n - check if you have connected the controls correctly \ n " << endl;

	}
	if (b == 1)
	{
		cout << "I will redirect you to a website that will help you :)" << endl;
		system("start chrome.exe https://www.pcformat.pl/Jak-podlaczyc--przedni-panel,a,2630");

	}
	else
	{
		cout << "Go to an IT specialist and let him do it for you :)" << endl;
		cout << "Ps 50 zlotys in your pocket better have :)" << endl;
	}
	system("pause");

}
void menueng::przegladarka(int a, int b)
{
	if (a == 1)
	{
		cout << "Please turn them off :-) and check if it works" << endl;

	}
	else
	{
		cout << "Restart your computer and check if your browser works!" << endl;

	}
	if (b == 1)
	{
		cout << "Reinstall browser, or install another :)" << endl;

	}
	else
	{
		cout << "We are glad that we could help!" << endl;

	}
	system("pause");
}
void menueng::screen(int a)
{
	if (a == 1)
	{
		cout << "If the problem is with the graphics card. \ n Please purchase and replace the graphics card as soon as possible" << endl;

	}
	else
	{
		cout << "If this is not the fault of the graphics card, check the monitor, or contact an IT specialist in your city" << endl;
	}
	system("pause");

}