After updates - a black screen with a large cursor does not start KDE

I made system updates today. After updating, the system does not start. I see only a large cursor on a black background.

After updates i have:

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plasmashell 5.14.4
Qt: 5.11.2
Szkielety KDE: 5.52.0
kf5-config: 1.0

my pacman.log → https://pastebin.com/gdUTswxU
my Xorg.0.log → https://pastebin.com/LV5nZses
my Xorg.1.log → https://pastebin.com/ZaNBqqbT
my xinitrc

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exec startkde

I switched to CLI and did it

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startx

I have → https://imgur.com/a/1T9B6lc

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Errors from xkbcomp are not fatal to the X server
/usr/bin/startkde: linia 118: 936 Naruszenie ochrony pamięci (zrzut pamięci) kapplymousetheme "$kcminputrc_mouse_cursortheme" "$kcminputrc_mouse_cursorsize"
startkde: Starting up... kdeinit5: Communication error with launcher. Exiting ! Cannot find 'org.kde.KSpalsh.setStage' in object /KSplash at org.kde.KSplash
kdeinit5_wrapper: Warning: connect(/run/user/1000/kdeinit5__1)  failed:  :  Connection refused
/usr/bin/startkde: linia 314: 977 Naruszenie ochrony pamięci (zrzut pamięci) kwrapper5 /usr/bin/ksmserver $KDEWM $MSKSERVEROPTINS
startkde: Shutting down...
waiting for X server to shut down  (II). Server terminated successfully (0). Closing log file.connection to X server losr/1000/kdeinit5

it fixed itself, please delete this thread staff.

Nothing has been fixed

happens all the time. I'll reinstall EVERY package soon ... imposible to find cause of error