This is a strange situation, because the application is compatible with Windows 10. It wasn't updated or developed properly and because of that you might encounter issues, but according to the information on the official website, you can run it on Windows 10 without problems.
Remove the application from your PC and then download the available Demo: https://www.roxbox.net/store/pc/viewPrd.asp?idproduct=1&idcategory=
If it works, then you need to install the latest version of the software because it's possible you're using an outdated one.