I get a similar error when I use this with Spaceblock. It is with the coal icon though. I have a few mods installed but the error goes away when I don't load Spaceblock with reverse-factory, leaving all the other mods being loaded.
Failed to load mods: The given sprite rectangle (left_top=0x0, right_bottom=64x64) is outside the actual sprite size (left_top=0x0, right_bottom=32x32). If this is being used as an icon you may need to define the icon_size properly:base/graphics/icons/coal.png
Mods to be disabled:
*reverse-factory