After updating lubuntu 20.04 qt creator does not start

After updating lubuntu 20.04 qt creator does not start

sergey@r60:~$ qtcreator
Icon theme "elementary" not found.
ConnectionServer error: "QLocalSocket: Remote closed" "/tmp/QtCreator-WSdXiN/ClangBackEnd-2061"
Ошибка сегментирования (стек памяти сброшен на диск)

gdb report:

Starting program: /usr/bin/qtcreator
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7ffff256f700 (LWP 1700)]
[New Thread 0x7fffe6ea6700 (LWP 1701)]
[New Thread 0x7fffe66a5700 (LWP 1702)]
[New Thread 0x7fffe5ea4700 (LWP 1703)]
[New Thread 0x7fffe56a3700 (LWP 1704)]
[New Thread 0x7fffd7fff700 (LWP 1705)]
Icon theme "elementary" not found.
[Detaching after fork from child process 1706]
[Detaching after fork from child process 1708]
[Detaching after fork from child process 1710]
[Detaching after fork from child process 1712]
[New Thread 0x7fffc3e0a700 (LWP 1714)]
[Detaching after fork from child process 1715]
[Thread 0x7fffc3e0a700 (LWP 1714) exited]
[New Thread 0x7fffc3609700 (LWP 1716)]
[Detaching after fork from child process 1717]
[New Thread 0x7fffc2e08700 (LWP 1718)]
[Detaching after fork from child process 1719]

Thread 1 "qtcreator" received signal SIGSEGV, Segmentation fault.
0x0000000000000000 in ?? ()
(gdb) thread apply all bt

Thread 10 (Thread 0x7fffc2e08700 (LWP 1718)):
#0 0x00007ffff661baff in _GI__poll (fds=0x7fffb40029e0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x00007ffff56561ae in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007ffff56562e3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007ffff6bf7565 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4 0x00007ffff6b9e4db in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5 0x00007ffff69d6785 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6 0x00007ffff69d79d2 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7 0x00007ffff68fd609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#8 0x00007ffff6628293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fffc3609700 (LWP 1716)):
#0 0x00007ffff661baff in _GI__poll (fds=0x7fffbc004260, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x00007ffff56561ae in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007ffff56562e3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007ffff6bf7565 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4 0x00007ffff6b9e4db in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
-Type <RET> for more, q to quit, c to continue without paging-
#5 0x00007ffff69d6785 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6 0x00007ffff69d79d2 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7 0x00007ffff68fd609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#8 0x00007ffff6628293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fffd7fff700 (LWP 1705)):
#0 0x00007ffff661baff in _GI__poll (fds=0x7fffcc0029e0, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x00007ffff56561ae in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007ffff56562e3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0