I was able to make it work, thanks! The correct plugin is PointBlankX_BepInEx_DemulShooter_Plugin, but there was another issue: a fresh folder of demulshooter 17.5 does not contain the DLL, just the ini. I tried to copy the DLL from a backup and it crashed, so I tried 17.2 and it has everything and everything works! When I have a chance I will also try 17.3 and 17.4 to see if those work too.
Wow, thanks.... Indeed there's an issue with the packed files
I'll need to investigate why it's missing and fix it...sorry 🫤