Unable to launch game w/ mods

[ProjectTess]

Patching game crashes with chmod error (RO FileSystem) because G3MTool-linux in /tmp (EROFS) and chmod wont work (sorry about my bad English)

[eeeyrie]

I am having the same issue while trying to lauch the game with mods. I dont know why this was closed

[Nurfgal]

I'm also having this same issue. Has anyone figured out how to resolve this?

[misshexa66]

something to do with appimage sandboxing, i think.
you can get around it by extracting the appimage and running the app directly

./deltamod-2.0.1.Appimage --appimage-extract
mv squashfs-root deltamod-2.0.1

then you'll have a folder named deltamod-2.0.1, just run the file named deltamod in there

[ghinorhino]

This is caused by AppImages not being configured correctly.

Keeping open, but this should be fixable but just extracting the app as misshexa66 pointed out.