Hello, I got a possible fix. I was able to find the cause of the problem using the files you provided me. If you wish, I can send you a copy of the lastest build as of now, to see if the problem is fixed.
Tehnical details: There is a exception thrown when 3DRadSpace is trying to initialize it's main static class, since it contains some culture-specific intitializers that didn't work on your machine.
I will send you a message in Discord with the binaries that will propably work.
Have a good day.