Try deleting the mods folder in the User/Zomboid folder in that case
#Anyone else having issues with self hosting?
solar barn
Well, if you load a mod and the server fails to load, then the mod likely is not compatible with multiplayer
Or is missing dependencies
frigid isle
Also if you use map mods they will take significantly longer to load and I wouldn't recommend them for hosting.
solar barn
Without mods?
solar barn
Can you share your logs.zip file found in C:\Users\YourUserName\Zomboid?
solar barn
Hm, yeah it seems like you might have one of the new bugs in this version, where you get black screened when hosting a coop game. Basically it will show no useful logs either. The devs are looking into this
Though it means I do not have any fix for it, nor have I seen anyone find a workaround yet
Only way I found is to just host using a dedicated server, as that one has no issues