Application: Parley (parley), signal: Segmentation fault

[KCrash Handler]
#4  0x00007f331f1a6b1c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#5  0x00007f331e65a6ea in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#6  0x00007f331e65d651 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib64/libQt5Core.so.5
#7  0x00007f331e6b2b53 in ?? () from /usr/lib64/libQt5Core.so.5
#8  0x00007f33140056bb in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#9  0x00007f3314005968 in ?? () from /lib64/libglib-2.0.so.0
#10 0x00007f3314005a1f in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#11 0x00007f331e6b21d0 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#12 0x00007f331e65911b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#13 0x00007f331e661350 in QCoreApplication::exec() () from /usr/lib64/libQt5Core.so.5
#14 0x0000559277d81191 in ?? ()
#15 0x00007f331df73e2d in __libc_start_main () from /lib64/libc.so.6
#16 0x0000559277d8120a in ?? ()
[Inferior 1 (process 14798) detached]

Application: Parley (parley), signal: Aborted

[KCrash Handler]
#4  0x00007effb848d2f1 in raise () from /lib64/libc.so.6
#5  0x00007effb8476538 in abort () from /lib64/libc.so.6
#6  0x00007effb84ceee7 in ?? () from /lib64/libc.so.6
#7  0x00007effb84d69bc in ?? () from /lib64/libc.so.6
#8  0x00007effb84d7d84 in ?? () from /lib64/libc.so.6
#9  0x00007effb8b93654 in QObject::~QObject() () from /usr/lib64/libQt5Core.so.5
#10 0x00007effb9842889 in QProgressBar::~QProgressBar() () from /usr/lib64/libQt5Widgets.so.5
#11 0x00007effb8b886ae in QObjectPrivate::deleteChildren() () from /usr/lib64/libQt5Core.so.5
#12 0x00007effb96e82e6 in QWidget::~QWidget() () from /usr/lib64/libQt5Widgets.so.5
#13 0x000055e58a9621f1 in ?? ()
#14 0x000055e58a985811 in ?? ()
#15 0x000055e58a985879 in ?? ()
#16 0x00007effb8b886ae in QObjectPrivate::deleteChildren() () from /usr/lib64/libQt5Core.so.5
#17 0x00007effb96e82e6 in QWidget::~QWidget() () from /usr/lib64/libQt5Widgets.so.5
#18 0x000055e58a92b4f4 in ?? ()
#19 0x000055e58a92b5b9 in ?? ()
#20 0x00007effb8b8addf in QObject::event(QEvent*) () from /usr/lib64/libQt5Core.so.5
#21 0x00007effba770267 in KXmlGuiWindow::event(QEvent*) () from /usr/lib64/libKF5XmlGui.so.5
#22 0x00007effb96aab1f in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#23 0x00007effb8b5e6ea in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#24 0x00007effb8b61651 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib64/libQt5Core.so.5
#25 0x00007effb8bb6b53 in ?? () from /usr/lib64/libQt5Core.so.5
#26 0x00007effae5096bb in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#27 0x00007effae509968 in ?? () from /lib64/libglib-2.0.so.0
#28 0x00007effae509a1f in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#29 0x00007effb8bb61d0 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#30 0x00007effb8b5d11b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#31 0x00007effb8b65350 in QCoreApplication::exec() () from /usr/lib64/libQt5Core.so.5
#32 0x000055e58a8f6191 in ?? ()
#33 0x00007effb8477e2d in __libc_start_main () from /lib64/libc.so.6
#34 0x000055e58a8f620a in ?? ()
[Inferior 1 (process 14892) detached]