On startup with only this mod and its dependencies installed, I get the following crash:
Failed to load mods: File __space-exploration-graphics__/graphics/entity/space-rail/straight-rail-vertical-ties.png not found
Mods to be disabled:
• SpatialSamba (0.2.3)
And indeed that file doesn't exist in space-exploration-graphics_0.7.5.zip.
However, a file that does exist in there is .../graphics/entity/space-rail/legacy-straight-rail-vertical-ties.png, so perhaps it (and similar files) were renamed to start with legacy- since you first published this mod.
Potentially Spacial Samba could thereby be made compatible with modern SE by checking for both possible file names? I don't know enough about the modding API to tell.