<!-- Describe the issue -->
Hello evryone, I get nothing when I click in open wallet, I am new to bitcoin and expect to show something.

![BitcoinIssue](https://user-images.githubusercontent.com/39341595/57179721-5024fc00-6e9e-11e9-80dd-af5e4345be48.png)

I'am using Bitcoin Core (both in testnet and mainnet, didn't work) 0.18 on window 10. 

{
    overviewAction->setEnabled(enabled);
    sendCoinsAction->setEnabled(enabled);
    sendCoinsMenuAction->setEnabled(enabled);
    receiveCoinsAction->setEnabled(enabled);
    receiveCoinsMenuAction->setEnabled(enabled);
    historyAction->setEnabled(enabled);
    encryptWalletAction->setEnabled(enabled);
    backupWalletAction->setEnabled(enabled);
    changePassphraseAction->setEnabled(enabled);
    signMessageAction->setEnabled(enabled);
    verifyMessageAction->setEnabled(enabled);
    usedSendingAddressesAction->setEnabled(enabled);
    usedReceivingAddressesAction->setEnabled(enabled);
    openAction->setEnabled(enabled);
    m_close_wallet_action->setEnabled(enabled);
}
void BitcoinGUI::createTrayIcon()
{
    assert(QSystemTrayIcon::isSystemTrayAvailable());
#ifndef Q_OS_MAC
    if (QSystemTrayIcon::isSystemTrayAvailable()) {
        trayIcon = new QSystemTrayIcon(m_network_style->getTrayAndWindowIcon(), this);
        QString toolTip = tr("%1 client").arg(tr(PACKAGE_NAME)) + " " + m_network_style->getTitleAddText();
        trayIcon->setToolTip(toolTip);
    }
#endif
}
void BitcoinGUI::createTrayIconMenu()