I have a bug
 

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Using host libthread_db library "/lib/tls/libthread_db.so.1".
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`shared object read from target memory' has disappeared; keeping its symbols.
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[Thread debugging using libthread_db enabled]
[New Thread -1230862112 (LWP 7061)]
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[KCrash handler]
#4 0xb7876601 in QGList::find () from /usr/lib/qt3/lib/libqt-mt.so.3
#5 0xb7247cd0 in ?? () from /usr/lib/libstdc++.so.6
#6 0xb7c0f82c in KGlobalSettings::s_desktopPath ()
from /usr/lib/libkdecore.so.4
#7 0xb7f07834 in KDirWatch::s_pSelf () from /usr/lib/libkio.so.4
#8 0xbf871c38 in ?? ()
#9 0xb7abafde in KGlobal::registerStaticDeleter ()
from /usr/lib/libkdecore.so.4

What is this how to owercome that it shows this error when I log off it said that KDE Kicker has broke down in signal 11 (sigsegv)!!!

How shoud I fix this!

It means that the KDE Kicker accessed an invalid section of memory, apparently in the middle of looking for a file of some sort. Try upgrading to the latest version, or working through the source yourself.

If you're not using the latest version of KDE, try to upgrade. If you have the latest, report the bug (you have such option in most of the programs, usually one option in the Help menu). Include the listing you've posted here.