My Free Download Manager suddenly stopped working. What can I do?
I am not Sure about that but some DirectX files might be deleted By some Junk removal Software or Registry Cleaner... Just Re-install the Application...
In order to fix the problem, remove the software from your computer (Control Panel > Uninstall a program), run a registry cleaner from Software Informer database to make sure that there are no leftover registry keys in your system and reboot the PC. After that, download and install the latest version of Free Download Manager. If you still have problems, you can try using another download manager.