Version:           0.12.4 (using KDE KDE 3.5.6)
Installed from:    Ubuntu Packages
OS:                Linux

I am using Jabber, ICQ and MSN. And since today (I did not change anything in the settings, neither yesterday nor today) it crashes every now and then, but I could not find out what's causing this.
I could try to run wireshark and check if it's coming from the outside?

Crash Output:

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Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
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[Thread debugging using libthread_db enabled]
[New Thread -1241044592 (LWP 10824)]
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[KCrash handler]
#6  0xb6111597 in strstr () from /lib/tls/i686/cmov/libc.so.6
#7  0xb5a430f9 in otrl_proto_message_type (message=0x0) at proto.c:321
#8  0xb5e5f7f5 in OtrlChatInterface::shouldDiscard ()
   from /usr/lib/libkotr.so.0
#9  0xb5a588f0 in OtrMessageHandler::handleMessage ()
   from /usr/lib/kde3/kopete_otr.so
#10 0xb7eaf55c in Kopete::MessageHandler::handleMessageInternal ()
   from /usr/lib/libkopete.so.1
#11 0xb7eb30ee in Kopete::ProcessMessageTask::slotStart ()
   from /usr/lib/libkopete.so.1
#12 0xb7eb8458 in Kopete::ProcessMessageTask::qt_invoke ()
   from /usr/lib/libkopete.so.1
#13 0xb68fc88b in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#14 0xb6c88ae0 in QSignal::signal () from /usr/lib/libqt-mt.so.3
#15 0xb691c81e in QSignal::activate () from /usr/lib/libqt-mt.so.3
#16 0xb6924234 in QSingleShotTimer::event () from /usr/lib/libqt-mt.so.3
#17 0xb6893a60 in QApplication::internalNotify () from /usr/lib/libqt-mt.so.3
#18 0xb689588f in QApplication::notify () from /usr/lib/libqt-mt.so.3
#19 0xb7057ce2 in KApplication::notify () from /usr/lib/libkdecore.so.4
#20 0xb68261e9 in QApplication::sendEvent () from /usr/lib/libqt-mt.so.3
#21 0xb68864ab in QEventLoop::activateTimers () from /usr/lib/libqt-mt.so.3
#22 0xb683ad25 in QEventLoop::processEvents () from /usr/lib/libqt-mt.so.3
#23 0xb68ae136 in QEventLoop::enterLoop () from /usr/lib/libqt-mt.so.3
#24 0xb68adf46 in QEventLoop::exec () from /usr/lib/libqt-mt.so.3
#25 0xb6895609 in QApplication::exec () from /usr/lib/libqt-mt.so.3
#26 0x0807feec in ?? ()
#27 0xbfe5d864 in ?? ()
#28 0xbfe5d85c in ?? ()
#29 0xbfe5d854 in ?? ()
#30 0x00000000 in ?? ()