Some excell file not backing up properly with WD.

Hi just hoping to get some help from the expert. I have a WD backup and working perfectly with the backup automation. However, I encounter an error coming from one of the excel files that says the path location of the file is no longer there and because of this I can not able to open the file but from the original location it is working. Other files or folders are working perfectly; only I am getting the random error from the excel file.


Please refer to the following KB article: WD Backup Online User Guide and Solutions