GUI Labels Overlap

hey So here is the thing... I have this only custom script in my code:

 private void OnGUI()
     {
         guiStyle.fontSize = 50;
         guiStyle.normal.textColor = Color.white;
         if (GUI.Button(new Rect(490, 110, 200, 90), "Reiniciar"))
         {
             Debug.Log("entrei em reiniciar");
             cont = 0;
             Debug.Log("Cont = " + cont);
             b1 = b2 = b3 = b4 = t1 = t2 = t3 = t4 = t5 = t6 = t7 = t8 = false;
             enabled = false;
         }
         else if (GUI.Button(new Rect(490, 2, 200, 90), "Sair"))
         {
             Application.Quit();
         }
         //
         if (cont == 1)
         {
             Debug.Log("cont = "+cont);
             txt = (cont + " par encontrado");
         }
         else {
             Debug.Log("cont = " + cont);
             txt = (cont + " pares encontrados");
         }
         //
         //      if (cont == 1) GUILayout.Label(cont + " par encontrado", guiStyle);
          //      else GUILayout.Label(cont + " pares encontrados", guiStyle);
          //if (cont == 4) GUILayout.Label("\n\nTodos os pares\nforam encontrados", guiStyle);
         enabled = false;
         GUILayout.Label(txt, guiStyle);
         enabled = true;
     }
 }
 

I change cont in the update method, that also calls OnGUI() in the end The labels start to overlap when I click in the 'Reiniciar' button

Can anyone help me?

Thanks in advance