Invalid access to memory

I can't open the file if it's quit big . The same error window keeps showing off
WinSCP 5.7

Error message:
Invalid access to memory.

Stack trace:
(FFFFF033) .[00370033]
(000689FA) ntdll.dll.[7BC799FA]
(00068E5E) ntdll.dll.[7BC79E5E]
(0006B2C9) ntdll.dll.[7BC7C2C9]
(0006B547) ntdll.dll.[7BC7C547]

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.