Error Timeout waiting for WinSCP to respond

Hi
I have a windows service that use WinSCPnet.dll (version 5.7.7.0) and in line session.open(sessionOption) I get System.TimeoutException ...
I read topic tracker/996 before and did it.
My service work correctly for some months and from yesterday this error occure.
I attach DebugLogPath.
Please help me

Mansooreh_64 wrote:

I read topic tracker/996 before and did it.

What did you do specifically?

The log file you have attached does not even show the exception. Also, you should update your version of WinSCP.

I did not anything! But it resolved now ;-)
I reset my server and it's solved.
Thank you so much