I've a problem where, when I show another window on the screen, everything works fine except the text isn't printed out on the screen. I've already called the loadText() in the int main(). Help me fix this problem.

#include "ErrorMessages.h"
#include "Global.h"
 
#include <SFML/Graphics.hpp>
 
ErrorMessages::ErrorMessages()
{
    //ctor
}
 
ErrorMessages::~ErrorMessages()
{
    //dtor
}
 
void ErrorMessages::loadText()
{
    if(ErrorFont.loadFromFile("monospa1.ttf"))
        ErrorText.setFont(ErrorFont);
}
void ErrorMessages::sendErrorBox_alreadyvote()
{
    sf::RenderWindow AlreadyVoted(sf::VideoMode(570,50,32), "ERROR - multiple votes not allowed");
 
    while(AlreadyVoted.isOpen())
    {
        sf::Event Event;
        while(AlreadyVoted.pollEvent(Event))
        {
            if(sf::Keyboard::isKeyPressed(sf::Keyboard::Escape) || Event.type == sf::Event::Closed)
                AlreadyVoted.close();
        }
 
        ErrorText.setString("You already vote this officer!");
        ErrorText.setColor(sf::Color::White);
 
        AlreadyVoted.draw(ErrorText);
        AlreadyVoted.display();
 
    }
}
 
void ErrorMessages::sendErrorBox_incompleteVote()
{
    sf::RenderWindow IncompleteVotes(sf::VideoMode(570,50,32),"ERROR - incomplete votes");
 
    while(IncompleteVotes.isOpen())
    {
        sf::Event Event;
        while(IncompleteVotes.pollEvent(Event))
        {
            if(sf::Keyboard::isKeyPressed(sf::Keyboard::Escape) || Event.type == sf::Event::Closed)
                IncompleteVotes.close();
        }
    }
 
    ErrorText.setString("You must vote all officers!");
    ErrorText.setColor(sf::Color::White);
 
    IncompleteVotes.draw(ErrorText);
    IncompleteVotes.display();
 
}

I've a problem where, when I show another window on the screen, everything works fine except the text isn't printed out on the screen. I've already called the setText() in the int main(). Help me fix this problem.

</p><div>#include "ErrorMessages.h"</div>
<div>#include "Global.h"</div>
<div> </div>
<div>#include <SFML/Graphics.hpp></div>
<div> </div>
<div>ErrorMessages::ErrorMessages()</div>
<div>{</div>
<div>    //ctor</div>
<div>}</div>
<div> </div>
<div>ErrorMessages::~ErrorMessages()</div>
<div>{</div>
<div>    //dtor</div>
<div>}</div>
<div> </div>
<div>void ErrorMessages::loadText()</div>
<div>{</div>
<div>    if(ErrorFont.loadFromFile("monospa1.ttf"))</div>
<div>        ErrorText.setFont(ErrorFont);</div>
<div>}</div>
<div>void ErrorMessages::sendErrorBox_alreadyvote()</div>
<div>{</div>
<div>    sf::RenderWindow AlreadyVoted(sf::VideoMode(570,50,32), "ERROR - multiple votes not allowed");</div>
<div> </div>
<div>    while(AlreadyVoted.isOpen())</div>
<div>    {</div>
<div>        sf::Event Event;</div>
<div>        while(AlreadyVoted.pollEvent(Event))</div>
<div>        {</div>
<div>            if(sf::Keyboard::isKeyPressed(sf::Keyboard::Escape) || Event.type == sf::Event::Closed)</div>
<div>                AlreadyVoted.close();</div>
<div>        }</div>
<div> </div>
<div>        ErrorText.setString("You already vote this officer!");</div>
<div>        ErrorText.setColor(sf::Color::White);</div>
<div> </div>
<div>        AlreadyVoted.draw(ErrorText);</div>
<div>        AlreadyVoted.display();</div>
<div> </div>
<div>    }</div>
<div>}</div>
<div> </div>
<div>void ErrorMessages::sendErrorBox_incompleteVote()</div>
<div>{</div>
<div>    sf::RenderWindow IncompleteVotes(sf::VideoMode(570,50,32),"ERROR - incomplete votes");</div>
<div> </div>
<div>    while(IncompleteVotes.isOpen())</div>
<div>    {</div>
<div>        sf::Event Event;</div>
<div>        while(IncompleteVotes.pollEvent(Event))</div>
<div>        {</div>
<div>            if(sf::Keyboard::isKeyPressed(sf::Keyboard::Escape) || Event.type == sf::Event::Closed)</div>
<div>                IncompleteVotes.close();</div>
<div>        }</div>
<div>    }</div>
<div> </div>
<div>    ErrorText.setString("You must vote all officers!");</div>
<div>    ErrorText.setColor(sf::Color::White);</div>
<div> </div>
<div>    IncompleteVotes.draw(ErrorText);</div>
<div>    IncompleteVotes.display();</div>
<div> </div>
<div>}</div>
<div>