QTableWidget, Save works, Load crashes

[haxxe]

hey guys, im just trying to learn qt but i got some problems.
i have a qttablewidget with some numbers in it, i can save it but if im trying to load my programm crashes.
i searched for hours but havent found a solution yet, heres my code
Save:

void MainWindow::saveMatrix()
{
    QString fileName = QFileDialog::getSaveFileName(this,
                 tr("Save Matrix"), "",
                 tr("Matrix (*.gja);;All Data (*)"));
         if (fileName.isEmpty())
                  return;
              else {
                  QFile file(fileName);
                  if (!file.open(QIODevice::WriteOnly)) {
                      QMessageBox::information(this, tr("Unable to open file"),
                          file.errorString());
                      return;
                  }
           QDataStream out(&file);
           out.setVersion(QDataStream::Qt_5_4);
           int rowCount, columnCount;
           rowCount = table->rowCount();
           columnCount = table->columnCount();
           out << QString::number(rowCount);
           out << QString::number(columnCount);
           for(int row=0;row<rowCount;row++)
           {
                for(int col=0;col<columnCount;col++)
                {
                    QString stream;
                    stream = table->item(row,col)->text();
                    out << stream;
                }
           }
         }
}

and my
load code:

void MainWindow::loadMatrix()
{
    QString fileName = QFileDialog::getOpenFileName(this,
                tr("Open Matrix"), "",
                tr("Matrix (*.gja);;All Files (*)"));
        if (fileName.isEmpty())
                 return;
             else {

                 QFile file(fileName);

                 if (!file.open(QIODevice::ReadOnly)) {
                     QMessageBox::information(this, tr("Unable to open file"),
                         file.errorString());
                     return;
                 }

                 QDataStream in(&file);
                 in.setVersion(QDataStream::Qt_5_4);
                 QString buf;
                 int rowCount, columnCount;
                 in >> buf;
                 rowCount = buf.toInt();
                 in >> buf;
                 columnCount = buf.toInt();
                 table->setRowCount(rowCount);
                 table->setColumnCount(columnCount);
                 for(int x=0;x<rowCount;x++)
                 {
                     for(int y=0;y<columnCount;y++)
                     {
                         in >> buf;
                         QTableWidgetItem *item = new QTableWidgetItem;
                         item->setText(buf);
                         table->setItem(x,y, item);
                     }

                 }
        }
}

what can i do? im just saving the size of my table and its content, then i restore it..
EDIT:now it works :D can be closed..strange
[edit: Added missing coding tags ``` SGaist]

[SGaist]

Hi and welcome to devnet,

What did happen in between ?