After restart the service task,Everything is OK again,and the error will be appeared after a few days.WinSCP process terminated with exit code 3. There was no output. Response log file C:\Windows\TEMP\wscp336E0.015864BD.tmp was not created. This could indicate lack of write permissions to the log folder or problems starting WinSCP itself.
Error same when using the version 5.17.7
Using WinSCP 5.13 & WinSCP 5.17.7 on Windows Server 2016.
Transfer protocol (FTP).