Pasting crash report inline for better searchability:

[KCrash Handler]
#4  0x00007f8020350c24 in elf_machine_rela_relative (reloc_addr_arg=0x7f80f8a5c470, reloc=0x7f7ff8943268, l_addr=140187607851008) at ../sysdeps/x86_64/dl-machine.h:548
#5  elf_dynamic_do_Rela (skip_ifunc=0, lazy=0, nrelative=0, relsize=0, reladdr=0, map=0x56403ad37470) at do-rel.h:112
#6  _dl_relocate_object (l=<optimized out>, scope=<optimized out>, reloc_mode=reloc_mode@entry=1, consider_profiling=<optimized out>, consider_profiling@entry=0) at dl-reloc.c:274
#7  0x00007f8020357f05 in dl_open_worker (a=a@entry=0x7ffdfee247e0) at dl-open.c:688
#8  0x00007f801e80e260 in __GI__dl_catch_exception (exception=exception@entry=0x7ffdfee247c0, operate=operate@entry=0x7f8020357ca0 <dl_open_worker>, args=args@entry=0x7ffdfee247e0) at dl-error-skeleton.c:208
#9  0x00007f80203578fa in _dl_open (file=0x56403acbba38 "/usr/lib/x86_64-linux-gnu/qt5/plugins/kcm_networkmanagement.so", mode=-2147479551, caller_dlopen=0x7f801ed11d8f, nsid=-2, argc=1, argv=0x7ffdfee247c0, env=0x56403a6e69c0) at dl-open.c:837
#10 0x00007f801ca8c258 in dlopen_doit (a=a@entry=0x7ffdfee24a00) at dlopen.c:66
#11 0x00007f801e80e260 in __GI__dl_catch_exception (exception=exception@entry=0x7ffdfee249a0, operate=operate@entry=0x7f801ca8c200 <dlopen_doit>, args=args@entry=0x7ffdfee24a00) at dl-error-skeleton.c:208
#12 0x00007f801e80e31f in __GI__dl_catch_error (objname=objname@entry=0x56403a6c12e0, errstring=errstring@entry=0x56403a6c12e8, mallocedp=mallocedp@entry=0x56403a6c12d8, operate=operate@entry=0x7f801ca8c200 <dlopen_doit>, args=args@entry=0x7ffdfee24a00) at dl-error-skeleton.c:227
#13 0x00007f801ca8ca65 in _dlerror_run (operate=operate@entry=0x7f801ca8c200 <dlopen_doit>, args=args@entry=0x7ffdfee24a00) at dlerror.c:170
#14 0x00007f801ca8c2e4 in __dlopen (file=<optimized out>, mode=<optimized out>) at dlopen.c:87
#15 0x00007f801ed11d8f in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007f801ed0b895 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f801ed0be73 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f801ecfd236 in QPluginLoader::load() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f801effed6a in KPluginLoader::load() () from /lib/x86_64-linux-gnu/libKF5CoreAddons.so.5
#20 0x00007f801effee3a in KPluginLoader::instance() () from /lib/x86_64-linux-gnu/libKF5CoreAddons.so.5
#21 0x00007f801effee87 in KPluginLoader::factory() () from /lib/x86_64-linux-gnu/libKF5CoreAddons.so.5
#22 0x00007f80202d314b in ?? () from /lib/x86_64-linux-gnu/libKF5KCMUtils.so.5
#23 0x00007f80202d252c in KCModuleLoader::isDefaults(KCModuleInfo const&, QStringList const&) () from /lib/x86_64-linux-gnu/libKF5KCMUtils.so.5
#24 0x00007f802030ef92 in MenuItem::updateDefaultIndicator() () from /lib/x86_64-linux-gnu/libsystemsettingsview.so.3
#25 0x00007f80000c3f7c in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/systemsettings_sidebar_mode.so
#26 0x00007f8020316025 in BaseMode::init(QExplicitlySharedDataPointer<KService> const&) () from /lib/x86_64-linux-gnu/libsystemsettingsview.so.3
#27 0x000056403901fc8b in ?? ()
#28 0x00007f801ed41ff1 in QObject::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007f802027c659 in KXmlGuiWindow::event(QEvent*) () from /lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#30 0x00007f801f8d515f in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#31 0x00007f801ed15fca in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#32 0x00007f801ed18a01 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#33 0x00007f801ed6de93 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#34 0x00007f801c846e6b in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007f801c847118 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007f801c8471cf in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007f801ed6d51f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#38 0x00007f801ed1498b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#39 0x00007f801ed1cc00 in QCoreApplication::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#40 0x000056403901bd2c in ?? ()
#41 0x00007f801e6fcd0a in __libc_start_main (main=0x56403901b4e0, argc=1, argv=0x7ffdfee25948, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffdfee25938) at ../csu/libc-start.c:308
#42 0x000056403901c6ea in _start ()

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