Resource deadlock avoided“ during file-transfer

Hello,

I use winscp for file-transfer since 1860... 😊

But lately, the above-mentioned error message has been hitting me repeatedly.

Does anyone have an idea what the reason could be here?

Kind regards
Chris

Sorry, I've never seen this error before. It comes from the server. Googling it, it do not seem to be related to file permissions (probably not even to files).