I have a job running where I have selected to move some duplicate files.
While Duplicate Cleaner is running I keep getting this dialog box that just has the number 124 and an OK button. The dialog boxes pile up also, that is I'll have to click ok through several of them. While this box is present Duplicate Cleaner stops processing files (it is still running, but has stopped processing files). Once I have clicked OK enough times, Duplicate Cleaner starts processing files again.
This results in me having to babysit this job, no fun.
What causes this error, and how is it resolved?
Here is a link to the screen shot of the error.

Thanks for the help!