Application: KMahjongg (kmahjongg), signal: Segmentation fault

[KCrash Handler]
#4  0x00007ff942a0e10b in QWidget::hasFocus() const () from /usr/lib64/libQt5Widgets.so.5
#5  0x00007ff942b2ae6d in ?? () from /usr/lib64/libQt5Widgets.so.5
#6  0x00007ff942b30c9d in QLineEdit::clear() () from /usr/lib64/libQt5Widgets.so.5
#7  0x00007ff9431f082a in KCommandBar::eventFilter(QObject*, QEvent*) () from /usr/lib64/libKF5ConfigWidgets.so.5
#8  0x00007ff941ddb003 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#9  0x00007ff9429e3b0e in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#10 0x00007ff941ddb29a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#11 0x00007ff9429e7ea4 in QApplicationPrivate::setFocusWidget(QWidget*, Qt::FocusReason) () from /usr/lib64/libQt5Widgets.so.5
#12 0x00007ff942a2023f in QWidget::clearFocus() () from /usr/lib64/libQt5Widgets.so.5
#13 0x00007ff942a212c8 in QWidget::~QWidget() () from /usr/lib64/libQt5Widgets.so.5
#14 0x00007ff9431f1a6c in KCommandBar::~KCommandBar() () from /usr/lib64/libKF5ConfigWidgets.so.5
#15 0x00007ff9432fc0df in ?? () from /usr/lib64/libKF5XmlGui.so.5
#16 0x00007ff941e11e37 in ?? () from /usr/lib64/libQt5Core.so.5
#17 0x00007ff9429dd1f2 in QAction::triggered(bool) () from /usr/lib64/libQt5Widgets.so.5
#18 0x00007ff9429dfe48 in QAction::activate(QAction::ActionEvent) () from /usr/lib64/libQt5Widgets.so.5
#19 0x00007ff942b67fa2 in ?? () from /usr/lib64/libQt5Widgets.so.5
#20 0x00007ff942b6fb41 in ?? () from /usr/lib64/libQt5Widgets.so.5
#21 0x00007ff942a25cbe in QWidget::event(QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#22 0x00007ff9429e3b1f in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#23 0x00007ff9429eb12b in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#24 0x00007ff941ddb29a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#25 0x00007ff9429ea163 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool) () from /usr/lib64/libQt5Widgets.so.5
#26 0x00007ff942a3fcce in ?? () from /usr/lib64/libQt5Widgets.so.5
#27 0x00007ff942a42435 in ?? () from /usr/lib64/libQt5Widgets.so.5
#28 0x00007ff9429e3b1f in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#29 0x00007ff941ddb29a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#30 0x00007ff9421ea163 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () from /usr/lib64/libQt5Gui.so.5
#31 0x00007ff9421becac in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Gui.so.5
#32 0x00007ff93c39537a in ?? () from /usr/lib64/libQt5XcbQpa.so.5
#33 0x00007ff93f8cc6bb in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#34 0x00007ff93f8cc968 in ?? () from /lib64/libglib-2.0.so.0
#35 0x00007ff93f8cca1f in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#36 0x00007ff941e32e00 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#37 0x00007ff941dd9ccb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#38 0x00007ff941de1f00 in QCoreApplication::exec() () from /usr/lib64/libQt5Core.so.5
#39 0x000055cdfb8471ea in ?? ()
#40 0x00007ff9416f4e2d in __libc_start_main () from /lib64/libc.so.6
#41 0x000055cdfb8472ca in ?? ()
[Inferior 1 (process 4925) detached]