FTP Problems - log data are empty

I still have problems to upload my stuff. I’m in discussion with the provider about possible reasons.
I thought I could help him with the suggested RapidWeaver “support logs”. But always I started this feature and try to past the result in an email there is absolutely nothing. Empty. No log data. Why?
The original upload stops before finishing the last 5 or 10 files with an “can’t upload error” - but no log datas available.

Any ideas?

I have problem too ,on my website about games.

RapidWeaver gives me no upload data log file - it’s just empty.
When I try to upload with a different app I get more details → screenshot.