i followe all the steps and i have a lua error

I followed all the steps to download the mod, but it won't let me and I get this Lua error: [G64] lua/includes/g64_utils.lua:350: attempt to index global 'libsm64' (a nil value) 1. GlobalInit - lua/includes/g64_utils.lua:350 2. unknown - lua/autorun/client/g64_spawnmenu.lua:523 please help