Please note that due to lack of developer time, submitted bug reports will probably not get a response. However, all bug reports are noticed and will be batch-processed when developer time becomes available.
If you can't start DocFetcher at all, make sure you're using the latest version of the program.
To receive a notification email when a new DocFetcher version is released, go to this page:
https://sourceforge.net/projects/docfetcher
... and click on the "Get Updates" button.