Crash desktop Anki on syncing (Win 10 64bit)

Hi!
Windows 10 64bit Pro.

When I runing synsing Anki terminates. Crash log:

Windows fatal exception: access violation

Current thread 0x00003480 (most recent call first):
File “anki\rsbackend.py”, line 260 in _run_command
File “anki\rsbackend_gen.py”, line 509 in sync_login
File “aqt\sync.py”, line 263 in
File “concurrent\futures\thread.py”, line 57 in run
File “concurrent\futures\thread.py”, line 80 in _worker
File “threading.py”, line 870 in run
File “threading.py”, line 932 in _bootstrap_inner
File “threading.py”, line 890 in _bootstrap

Thread 0x000003a4 (most recent call first):
File “threading.py”, line 306 in wait
File “queue.py”, line 179 in get
File “aqt\mpv.py”, line 367 in _get_event
File “aqt\mpv.py”, line 511 in _event_reader
File “threading.py”, line 870 in run
File “threading.py”, line 932 in _bootstrap_inner
File “threading.py”, line 890 in _bootstrap

Thread 0x000034f4 (most recent call first):
File “aqt\mpv.py”, line 240 in _reader
File “threading.py”, line 870 in run
File “threading.py”, line 932 in _bootstrap_inner
File “threading.py”, line 890 in _bootstrap

Thread 0x00003c20 (most recent call first):
File “threading.py”, line 302 in wait
File “waitress\task.py”, line 74 in handler_thread
File “threading.py”, line 870 in run
File “threading.py”, line 932 in _bootstrap_inner
File “threading.py”, line 890 in _bootstrap

Thread 0x0000122c (most recent call first):
File “threading.py”, line 302 in wait
File “waitress\task.py”, line 74 in handler_thread
File “threading.py”, line 870 in run
File “threading.py”, line 932 in _bootstrap_inner
File “threading.py”, line 890 in _bootstrap

Thread 0x00003adc (most recent call first):
File “threading.py”, line 302 in wait
File “waitress\task.py”, line 74 in handler_thread
File “threading.py”, line 870 in run
File “threading.py”, line 932 in _bootstrap_inner
File “threading.py”, line 890 in _bootstrap

Thread 0x000037d8 (most recent call first):
File “threading.py”, line 302 in wait
File “waitress\task.py”, line 74 in handler_thread
File “threading.py”, line 870 in run
File “threading.py”, line 932 in _bootstrap_inner
File “threading.py”, line 890 in _bootstrap

Thread 0x000013e0 (most recent call first):
File “waitress\wasyncore.py”, line 174 in poll
File “waitress\wasyncore.py”, line 247 in loop
File “waitress\server.py”, line 329 in run
File “aqt\mediasrv.py”, line 71 in run
File “threading.py”, line 932 in _bootstrap_inner
File “threading.py”, line 890 in _bootstrap

Thread 0x0000229c (most recent call first):
File “aqt_init_.py”, line 570 in run
File "aqt_init
.py", line 400 in run
File “runanki”, line 4 in

What can I do? Thanks!

On other PC (Win 10 64bit Home for one lang) - no problem.

If you run anki-console, is any text printed as it crashes? https://faqs.ankiweb.net/when-anki-does-not-start-on-windows-debugging-steps.html

C:\Users\Michael>cd \program files\anki & anki-console
[1564] PyInstaller Bootloader 3.x
[1564] LOADER: executable is C:\Program Files\Anki\anki-console.exe
[1564] LOADER: homepath is C:\Program Files\Anki
[1564] LOADER: _MEIPASS2 is NULL
[1564] LOADER: archivename is C:\Program Files\Anki\anki-console.exe
[1564] LOADER: C:\Program Files\Anki\anki-console.exe contains a digital signature
[1564] LOADER: No need to extract files to run; setting extractionpath to homepath
[1564] LOADER: SetDllDirectory(C:\Program Files\Anki)
[1564] LOADER: Already in the child - running user’s code.
[1564] LOADER: Python library: C:\Program Files\Anki\python38.dll
[1564] LOADER: Loaded functions from Python library.
[1564] LOADER: Manipulating environment (sys.path, sys.prefix)
[1564] LOADER: sys.prefix is C:\Program Files\Anki
[1564] LOADER: Pre-init sys.path is C:\Program Files\Anki\base_library.zip;C:\Program Files\Anki
[1564] LOADER: Setting runtime options
[1564] LOADER: Initializing python
[1564] LOADER: Overriding Python’s sys.path
[1564] LOADER: Post-init sys.path is C:\Program Files\Anki\base_library.zip;C:\Program Files\Anki
[1564] LOADER: Setting sys.argv
[1564] LOADER: setting sys._MEIPASS
[1564] LOADER: importing modules from CArchive
[1564] LOADER: extracted struct
[1564] LOADER: callfunction returned…
[1564] LOADER: extracted pyimod01_os_path
[1564] LOADER: callfunction returned…
[1564] LOADER: extracted pyimod02_archive
[1564] LOADER: callfunction returned…
[1564] LOADER: extracted pyimod03_importers
[1564] LOADER: callfunction returned…
[1564] LOADER: Installing PYZ archive with Python modules.
[1564] LOADER: PYZ archive: PYZ-00.pyz
[1564] LOADER: Running pyiboot01_bootstrap.py
[1564] LOADER: Running pyi_rth_multiprocessing.py
[1564] LOADER: Running pyi_rth_win32comgenpy.py
[1564] LOADER: Running pyi_rth_certifi.py
[1564] LOADER: Running pyi_rth_pyqt5.py
[1564] LOADER: Running pyi_rth_pkgres.py
[1564] LOADER: Running pyi_rth_pyqt5webengine.py
[1564] LOADER: Running runanki.py
mpv too old for key rebinding

C:\Program Files\Anki>
Program works good, all OK.
But after press Sync Anki just terminates, no messages in console.
Well, it is problem in my PC, no Anki. In home PC all ok. It’s enough. Thank You very mach!

Strange - do you use any antivirus/firewall/proxy software on the problem machine?

Proxy - no, antivirus/firewall - yes. I turned them off, nothing changed.
Don’t worry, one PC and phone is enough for me)
The topic can be deleted.
Thanks for all!