baloorunner crash - kubuntu 19.04

[lucone]

Everytime that i use baloorunner search from the application launcher it crashes with segmentation fault.
these are developer informations :

Application: baloorunner (baloorunner), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f8d53bca800 (LWP 3077))]

Thread 3 (Thread 0x7f8d50a57700 (LWP 3079)):
#0 0x00007f8d5793e729 in __GI___poll (fds=0x7f8d44004e30, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x00007f8d56528cb6 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007f8d56528ddc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007f8d57ebf063 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4 0x00007f8d57e6a5bb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5 0x00007f8d57cb52c6 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6 0x00007f8d58d9b565 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7 0x00007f8d57cb6612 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8 0x00007f8d56d92182 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9 0x00007f8d5794ab1f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f8d52ba9700 (LWP 3078)):
#0 0x00007f8d5793e729 in __GI___poll (fds=0x7f8d52ba8ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x00007f8d5609c917 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2 0x00007f8d5609e53a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3 0x00007f8d537996a8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4 0x00007f8d57cb6612 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5 0x00007f8d56d92182 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6 0x00007f8d5794ab1f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f8d53bca800 (LWP 3077)):
[KCrash Handler]
#6 __memmove_sse2_unaligned_erms () at ../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:326
#7 0x00007f8d57cc3dc4 in QByteArray::QByteArray(char const*, int) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8 0x00007f8d5768735f in ?? () from /usr/lib/x86_64-linux-gnu/libKF5BalooEngine.so.5
#9 0x00007f8d57687431 in Baloo::PostingDB::iter(QByteArray const&) () from /usr/lib/x86_64-linux-gnu/libKF5BalooEngine.so.5
#10 0x00007f8d5768e560 in Baloo::Transaction::postingIterator(Baloo::EngineQuery const&) const () from /usr/lib/x86_64-linux-gnu/libKF5BalooEngine.so.5
#11 0x00007f8d58f8f5ce in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Baloo.so.5
#12 0x00007f8d58f8f39d in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Baloo.so.5
#13 0x00007f8d58f90468 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Baloo.so.5
#14 0x00007f8d58f7efc0 in Baloo::Query::exec() () from /usr/lib/x86_64-linux-gnu/libKF5Baloo.so.5
#15 0x00005604fe2fa92a in ?? ()
#16 0x00005604fe2fbf16 in ?? ()
#17 0x00007f8d57e95563 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f8d57ea10c7 in QTimer::timeout(QTimer::QPrivateSignal) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f8d57e95c5b in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007f8d58883551 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00007f8d5888a930 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007f8d57e6b8e9 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007f8d57ebe453 in QTimerInfoList::activateTimers() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007f8d57ebeca4 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007f8d56528aae in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f8d56528d48 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f8d56528ddc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007f8d57ebf047 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007f8d57e6a5bb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x00007f8d57e725e2 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x00005604fe2f892f in ?? ()
#32 0x00007f8d57853b6b in __libc_start_main (main=0x5604fe2f88c0, argc=1, argv=0x7ffc34adc928, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffc34adc918) at ../csu/libc-start.c:308
#33 0x00005604fe2f89aa in _start ()
[Inferior 1 (process 3077) detached]

[lucone (lucacerpy)]

https://answers.launchpad.net/ubuntu/+question/680590
I've already made a question about this bug

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

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[lucone (lucacerpy)]

Solved removing index files