I've installed this application on Windows 10 and everything works normally without errors. When I started the installation of Anu Script Manager, I've used Run as Administrator option to avoid any other complications. At the end of the installation, the software configured and copied all the fonts necessary to work properly.
This is a screenshot of the software working in Windows 10:
Re-download Anu Script Manager and follow the same procedure as I did and it should install properly.