Cannot print directory because of file can't be found

When I try to print a directory I receive an error message saying that a path cannot be found for "lecture titles.txt". I cannot locate this file on any drive I have installed. How can I remove this error?

Could you post a screenshot of how the Print Folder dialog is set up, and another of the error message (so we can see if it's coming from Opus itself or from Windows or another component, by the style of error window)?