Version:           unspecified (using KDE 4.6.2) 
OS:                Linux

Hello, the hard reboot have corrupt the archive file, and the metakit plugin not support it, the bt:
Application: Akregator (akregator), signal: Segmentation fault
[KCrash Handler]
#6  0x00007f3ec07769cc in c4_View::GetAt (this=0x8, index_=1844449) at /var/tmp/portage/kde-base/akregator-4.4.10/work/akregator-4.4.10/akregator/plugins/mk4storage/metakit/include/mk4.inl:849
#7  0x00007f3ec07769f9 in c4_View::operator[] (this=0x8, index_=1844449) at /var/tmp/portage/kde-base/akregator-4.4.10/work/akregator-4.4.10/akregator/plugins/mk4storage/metakit/include/mk4.inl:860
#8  0x00007f3ec077f857 in c4_Differ::BaseOfDiff (this=0x0, id_=1844449) at /var/tmp/portage/kde-base/akregator-4.4.10/work/akregator-4.4.10/akregator/plugins/mk4storage/metakit/src/persist.cpp:446
#9  0x00007f3ec0771491 in c4_Column::SetupSegments (this=0xe3f980) at /var/tmp/portage/kde-base/akregator-4.4.10/work/akregator-4.4.10/akregator/plugins/mk4storage/metakit/src/column.cpp:219
#10 0x00007f3ec0772bc0 in c4_Column::LoadNow (this=0xe3f980, offset_=0) at /var/tmp/portage/kde-base/akregator-4.4.10/work/akregator-4.4.10/akregator/plugins/mk4storage/metakit/src/column.inl:57
#11 0x00007f3ec0771567 in c4_ColIter::Next (this=0x7fff58558440) at /var/tmp/portage/kde-base/akregator-4.4.10/work/akregator-4.4.10/akregator/plugins/mk4storage/metakit/src/column.cpp:1452
#12 0x00007f3ec077163a in c4_Column::FetchBytes (this=<value optimized out>, pos_=<value optimized out>, len_=98, buffer_=..., forceCopy_=true) at /var/tmp/portage/kde-base/akregator-4.4.10/work/akregator-4.4.10/akregator/plugins/mk4storage/metakit/src/column.cpp:715
#13 0x00007f3ec077c531 in c4_FormatB::Define (this=<value optimized out>, ptr_=<value optimized out>) at /var/tmp/portage/kde-base/akregator-4.4.10/work/akregator-4.4.10/akregator/plugins/mk4storage/metakit/src/format.cpp:400
#14 0x00007f3ec077e18d in c4_HandlerSeq::Prepare (this=0xe91800, ptr_=0x7fff585585e0, selfDesc_=<value optimized out>) at /var/tmp/portage/kde-base/akregator-4.4.10/work/akregator-4.4.10/akregator/plugins/mk4storage/metakit/src/handler.cpp:321
#15 0x00007f3ec0780bc5 in c4_Persist::LoadAll (this=0xe80d20) at /var/tmp/portage/kde-base/akregator-4.4.10/work/akregator-4.4.10/akregator/plugins/mk4storage/metakit/src/persist.cpp:1026
#16 0x00007f3ec079238b in Akregator::Backend::StorageMK4Impl::open (this=0xee39f0, autoCommit=true) at /var/tmp/portage/kde-base/akregator-4.4.10/work/akregator-4.4.10/akregator/plugins/mk4storage/storagemk4impl.cpp:134
#17 0x00007f3ec27530ad in Akregator::Part::Part (this=0xdc1070, parentWidget=0xd9e020, parent=<value optimized out>, __in_chrg=<value optimized out>, __vtt_parm=<value optimized out>) at /var/tmp/portage/kde-base/akregator-4.4.10/work/akregator-4.4.10/akregator/src/akregator_part.cpp:208
#18 0x00007f3ec2755a5f in KPluginFactory::createPartInstance<Akregator::Part> (parentWidget=0xd9e020, parent=0xd9e020, args=...) at /usr/include/kpluginfactory.h:479
#19 0x00007f3ed636d5a4 in KPluginFactory::create (this=<value optimized out>, iface=0x7f3ed84812c0 "KParts::ReadOnlyPart", parentWidget=<value optimized out>, parent=<value optimized out>, args=..., keyword=<value optimized out>) at /var/portage/portage/kde-base/kdelibs-4.6.2-r2/work/kdelibs-4.6.2/kdecore/util/kpluginfactory.cpp:203
#20 0x000000000040c692 in KPluginFactory::create<KParts::ReadOnlyPart> (this=0xe2d310, parent=0xd9e020, args=...) at /usr/include/KDE/../kpluginfactory.h:503
#21 0x000000000040b2f9 in Akregator::MainWindow::loadPart (this=0xd9e020) at /var/tmp/portage/kde-base/akregator-4.4.10/work/akregator-4.4.10/akregator/src/mainwindow.cpp:109
#22 0x000000000040b5c8 in Akregator::MainWindow::readProperties (this=0xd9e020, config=...) at /var/tmp/portage/kde-base/akregator-4.4.10/work/akregator-4.4.10/akregator/src/mainwindow.cpp:152
#23 0x000000000040a4b8 in Akregator::MainWindow::autoReadProperties (this=0xd9e020) at /var/tmp/portage/kde-base/akregator-4.4.10/work/akregator-4.4.10/akregator/src/mainwindow.cpp:266
#24 0x000000000040b977 in Akregator::MainWindow::MainWindow (this=0xd9e020, parent=<value optimized out>, f=<value optimized out>, __in_chrg=<value optimized out>, __vtt_parm=<value optimized out>) at /var/tmp/portage/kde-base/akregator-4.4.10/work/akregator-4.4.10/akregator/src/mainwindow.cpp:89
#25 0x0000000000409bdc in Akregator::Application::newInstance (this=0x7fff5855a150) at /var/tmp/portage/kde-base/akregator-4.4.10/work/akregator-4.4.10/akregator/src/main.cpp:58
#26 0x00007f3ed75fc70b in KUniqueApplicationAdaptor::newInstance (this=0xde3270, asn_id=<value optimized out>, args=...) at /var/portage/portage/kde-base/kdelibs-4.6.2-r2/work/kdelibs-4.6.2/kdeui/kernel/kuniqueapplication.cpp:436
#27 0x00007f3ed75fc7a7 in KUniqueApplicationAdaptor::qt_metacall (this=0xde3270, _c=QMetaObject::InvokeMetaMethod, _id=1844449, _a=0x7fff58559170) at /var/portage/portage/kde-base/kdelibs-4.6.2-r2/work/kdelibs-4.6.2_build/kdeui/kuniqueapplication_p.moc:81
#28 0x00007f3ed5a37382 in QDBusConnectionPrivate::deliverCall (this=<value optimized out>, object=<value optimized out>, msg=<value optimized out>, metaTypes=<value optimized out>, slotIdx=<value optimized out>) at qdbusintegrator.cpp:941
#29 0x00007f3ed5a391a5 in QDBusConnectionPrivate::activateCall (this=<value optimized out>, object=0xde3270, flags=337, msg=...) at qdbusintegrator.cpp:844
#30 0x00007f3ed5a39e41 in QDBusConnectionPrivate::activateObject (this=<value optimized out>, node=..., msg=..., pathStartPos=<value optimized out>) at qdbusintegrator.cpp:1409
#31 0x00007f3ed5a3a3d8 in QDBusActivateObjectEvent::placeMetaCall (this=0xd16f20) at qdbusintegrator.cpp:1523
#32 0x00007f3ed5e3099e in QObject::event (this=0x7fff5855a150, e=0x8) at kernel/qobject.cpp:1217
#33 0x00007f3ed6813106 in QApplication::event (this=0x7fff5855a150, e=0xd16f20) at kernel/qapplication.cpp:2503
#34 0x00007f3ed68112e0 in QApplicationPrivate::notify_helper (this=0xca4760, receiver=0x7fff5855a150, e=0xd16f20) at kernel/qapplication.cpp:4462
#35 0x00007f3ed6819627 in QApplication::notify (this=0x7fff5855a150, receiver=0x7fff5855a150, e=0xd16f20) at kernel/qapplication.cpp:4341
#36 0x00007f3ed75f7da1 in KApplication::notify (this=0x7fff5855a150, receiver=0x7fff5855a150, event=0xd16f20) at /var/portage/portage/kde-base/kdelibs-4.6.2-r2/work/kdelibs-4.6.2/kdeui/kernel/kapplication.cpp:311
#37 0x00007f3ed5e1d8eb in QCoreApplication::notifyInternal (this=0x7fff5855a150, receiver=0x7fff5855a150, event=0xd16f20) at kernel/qcoreapplication.cpp:731
#38 0x00007f3ed5e1ee4b in sendEvent (receiver=0x0, event_type=<value optimized out>, data=0xc7f380) at kernel/qcoreapplication.h:215
#39 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=<value optimized out>, data=0xc7f380) at kernel/qcoreapplication.cpp:1372
#40 0x00007f3ed5e4dad3 in sendPostedEvents (s=0xca8520) at kernel/qcoreapplication.h:220
#41 postEventSourceDispatch (s=0xca8520) at kernel/qeventdispatcher_glib.cpp:277
#42 0x00007f3ecf5ef73b in g_main_dispatch (context=0xca8440) at gmain.c:2149
#43 g_main_context_dispatch (context=0xca8440) at gmain.c:2702
#44 0x00007f3ecf5f3e70 in g_main_context_iterate (context=0xca8440, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>) at gmain.c:2780
#45 0x00007f3ecf5f402c in g_main_context_iteration (context=0xca8440, may_block=1) at gmain.c:2843
#46 0x00007f3ed5e4d6c3 in QEventDispatcherGlib::processEvents (this=0xca22d0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#47 0x00007f3ed68cfb1e in QGuiEventDispatcherGlib::processEvents (this=0x8, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#48 0x00007f3ed5e1c4f2 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#49 0x00007f3ed5e1c8d5 in QEventLoop::exec (this=0x7fff5855a100, flags=) at kernel/qeventloop.cpp:201
#50 0x00007f3ed5e1f15b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#51 0x0000000000409846 in main (argc=<value optimized out>, argv=<value optimized out>) at /var/tmp/portage/kde-base/akregator-4.4.10/work/akregator-4.4.10/akregator/src/main.cpp:103

Please prevent this kind of bug.
Fix after have drop the archive folder.

Reproducible: Always