Windows 98 fell into black screen after start screen

I find a interesting project https://github.com/felixrieseberg/windows95 which wrap v86 into electron recently. And I forked the repo and want to make it work for windows98(https://github.com/liudonghua123/windows98), But after some modifications this app did not always work as expected. It did work some times, but it fell into black screen after the start screen more times, I went through the code but could not found the problems.
I really hope my project could works so I wrote this issue here, hope someone could help me to fix this problem, anyone could try this app via downloading it on https://github.com/liudonghua123/windows98/releases/tag/v1.3.0