OFS uses a 3rd party video player component, MPV, which has caused problems for some users with e.g. Intel integrated graphics. nVidia video cards seems to works best and AMD usually work too. However, the OFS dev has very few options to help if it is MPV that is the culprit. There is a thread about this that you could look into and try the suggestion there. Maybe it help you even if it didn’t help the one that had the problem originally.
https://discuss.eroscripts.com/t/openfunscripter-install-help/24943/12