fix

main.cpp

@@ -119,6 +119,7 @@ int main()
                 text.setPosition(50, 80);
 
                 while (errorWindow.isOpen()) {
+                    audioManager.stopBackgroundMusic();
                     sf::Event event;
                     while (errorWindow.pollEvent(event)) {
                         if (event.type == sf::Event::Closed || sf::Keyboard::isKeyPressed(sf::Keyboard::Escape)) {