Thanks for your report.
I have sent you an email with a debug version of WinSCP to address you have used to register on this forum.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.7

Error message:
Nepodařilo se zjistit název aktuálního adresáře.

Chyba přístupu do paměti.

Stack trace:
(001DF008) .[08020008]
[015F05DE] C4725_0
[015F2646] ____ExceptionHandler
[015EF5C0] __ExceptionHandler
[77C6B466] ntdll.dll
[77C2012E] ntdll.dll.KiUserExceptionDispatcher
[015490DB] TConsoleDialog::DoChangeDirectory
[01520A1E] TTerminal::ReadCurrentDirectory
[0151C892] TTerminal::ReactOnCommand
[01423D53] TUnixDirView::ChangeDirectory
[014221B2] TUnixDirView::ExecuteFile
[0102C755] Vcl::Controls::TWinControl::WndProc
[01070683] Vcl::Comctrls::TCustomListView::WndProc
[01150678] System::Classes::_18201
[75C562F7] USER32.dll
[75C56D35] USER32.dll
[75C60D22] USER32.dll
[75C60D48] USER32.dll.CallWindowProcW
[0120F24F] Dragdrop::TDragDrop::WndMethod
[01150678] System::Classes::_18201
[75C562F7] USER32.dll
[75C56D35] USER32.dll
[75C577BF] USER32.dll
[75C57885] USER32.dll.DispatchMessageW