I've ran across this before too. Basically for me it was looking for the log file on a drive that wasn't hooked up. Here's what I did to fix it it for me:
- Open up NewDeshaker as usual
- Under "Deshaker Filter Presets" section (mid-window) you'll see several buttons.
-- Select the first button. When you hover mouse pointer over it, you should see "Edit current filter preset"
- Look for the field titled "Log file:"
- Input a directory path that exists on your puter followed by deshaker.log
e.g. your path\deshaker.log
- Select "OK" button at bottom of window.