Call superkaramba. Select load from internet. In widgets select window in search bar type sys after that click on clear(x) button.
Crash report:

Program: SuperKaramba (superkaramba), signal SIGSEGV
0xb6b1d43c in nanosleep () from /lib/libc.so.6

Thread 1 (Thread 0xb3fbf6f0 (LWP 17266)):
[KCrash Handler]
#5  0x09bd5728 in ?? ()
#6  0xb7dec967 in KWidgetItemDelegatePool::findWidgets (this=0x834c2c0, idx=@0xbfbc31d8, option=@0xbfbc30fc, updateWidgets=KWidgetItemDelegatePool::UpdateWidgets)
    at /mnt/sdb1/software/PC-compatible/_nix/desktop/kde/src/kde4/svn/kdelibs/kdeui/itemviews/kwidgetitemdelegatepool.cpp:119
#7  0xb7deaa5b in KWidgetItemDelegatePrivate::updateRowRange (this=0x834b8f0, parent=@0xbfbc3374, start=7, end=11, isRemoving=false)
    at /mnt/sdb1/software/PC-compatible/_nix/desktop/kde/src/kde4/svn/kdelibs/kdeui/itemviews/kwidgetitemdelegate.cpp:115
#8  0xb7deab3e in KWidgetItemDelegatePrivate::_k_slotRowsInserted (this=0x834b8f0, parent=@0xbfbc3374, start=7, end=11)
    at /mnt/sdb1/software/PC-compatible/_nix/desktop/kde/src/kde4/svn/kdelibs/kdeui/itemviews/kwidgetitemdelegate.cpp:69
#9  0xb7deaff3 in KWidgetItemDelegate::qt_metacall (this=0x834c298, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0xbfbc3334)
    at /mnt/sdb1/software/PC-compatible/_nix/desktop/kde/src/kde4/svn/build/kdeui/kwidgetitemdelegate.moc:73
#10 0xb706376a in KNS::ItemsViewDelegate::qt_metacall (this=0x834c298, _c=QMetaObject::InvokeMetaMethod, _id=9, _a=0xbfbc3334)
    at /mnt/sdb1/software/PC-compatible/_nix/desktop/kde/src/kde4/svn/build/knewstuff/knewstuff2/moc_itemsviewdelegate.cpp:69
#11 0xb6e705ee in QMetaObject::activate (sender=0x80a5bf0, from_signal_index=<value optimized out>, to_signal_index=9, argv=0x9d883a0) at kernel/qobject.cpp:3022
#12 0xb6e70c82 in QMetaObject::activate (sender=0x80a5bf0, m=0xb6f416b8, local_signal_index=5, argv=0xbfbc3334) at kernel/qobject.cpp:3092
#13 0xb6eacd0f in QAbstractItemModel::rowsInserted (this=0x80a5bf0, _t1=@0xbfbc3374, _t2=7, _t3=11) at .moc/release-shared/moc_qabstractitemmodel.cpp:157
#14 0xb6e56fe8 in QAbstractItemModel::endInsertRows (this=0x80a5bf0) at kernel/qabstractitemmodel.cpp:2092
#15 0xb77159ec in QSortFilterProxyModelPrivate::insert_source_items (this=0x8345900, source_to_proxy=@0x9ddced0, proxy_to_source=@0x9ddcec8, source_items=@0xbfbc3464, source_parent=@0xbfbc349c, 
    orient=Qt::Vertical, emit_signal=true) at itemviews/qsortfilterproxymodel.cpp:585
#16 0xb771638d in QSortFilterProxyModelPrivate::handle_filter_changed (this=0x8345900, source_to_proxy=@0x9ddced0, proxy_to_source=@0x9ddcec8, source_parent=@0xbfbc349c, orient=Qt::Vertical)
    at itemviews/qsortfilterproxymodel.cpp:948
#17 0xb771650a in QSortFilterProxyModelPrivate::filter_changed (this=0x8345900) at itemviews/qsortfilterproxymodel.cpp:905
#18 0xb709455c in KNS::DownloadDialog::slotUpdateSearch (this=0x8348d28) at /mnt/sdb1/software/PC-compatible/_nix/desktop/kde/src/kde4/svn/kdelibs/knewstuff/knewstuff2/ui/downloaddialog.cpp:345
#19 0xb7097a70 in KNS::DownloadDialog::qt_metacall (this=0x8348d28, _c=QMetaObject::InvokeMetaMethod, _id=8, _a=0xbfbc35a8)
    at /mnt/sdb1/software/PC-compatible/_nix/desktop/kde/src/kde4/svn/build/knewstuff/knewstuff2/downloaddialog.moc:118
#20 0xb6e705ee in QMetaObject::activate (sender=0x83510b0, from_signal_index=<value optimized out>, to_signal_index=4, argv=0x9d883a0) at kernel/qobject.cpp:3022
#21 0xb6e70c82 in QMetaObject::activate (sender=0x83510b0, m=0xb6f41ac4, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3092
#22 0xb6eada77 in QTimer::timeout (this=0x83510b0) at .moc/release-shared/moc_qtimer.cpp:126
#23 0xb6e776ae in QTimer::timerEvent (this=0x83510b0, e=0xbfbc3a88) at kernel/qtimer.cpp:257
#24 0xb6e6b073 in QObject::event (this=0x83510b0, e=0xbfbc3a88) at kernel/qobject.cpp:1111
#25 0xb71d7843 in QApplicationPrivate::notify_helper (this=0x80a69c0, receiver=0x83510b0, e=0xbfbc3a88) at kernel/qapplication.cpp:3803
#26 0xb71dc459 in QApplication::notify (this=0xbfbc4c64, receiver=0x83510b0, e=0xbfbc3a88) at kernel/qapplication.cpp:3393
#27 0xb7dfa99d in KApplication::notify (this=0xbfbc4c64, receiver=0x83510b0, event=0xbfbc3a88)
    at /mnt/sdb1/software/PC-compatible/_nix/desktop/kde/src/kde4/svn/kdelibs/kdeui/kernel/kapplication.cpp:307
#28 0xb6e5b756 in QCoreApplication::notifyInternal (this=0xbfbc4c64, receiver=0x83510b0, event=0xbfbc3a88) at kernel/qcoreapplication.cpp:587
#29 0xb6e891c5 in QTimerInfoList::activateTimers (this=0x80a9494) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:209
#30 0xb6e86aa0 in timerSourceDispatch (source=0x80a9460) at kernel/qeventdispatcher_glib.cpp:160
#31 0xb6392146 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#32 0xb63954f3 in ?? () from /usr/lib/libglib-2.0.so.0
#33 0x080a8c98 in ?? ()
#34 0x00000000 in ?? ()