Path/File Access Error

Every few days, my wallpaper will be stuck on a date 3 or 4 days behind, and when I select Refresh Wallpaper, I get a notice saying “Path/File Access Error.” I’ve tried uninstalling and reinstalling the program and resetting my options, but I’d like to try and find a more permanent solution to the problem. Thank you in advance for your help.

Please see the following thread: