Material Addon throws errors

[TTT - Material Addon] Couldn't include file 'weapons\hdtf_mhdtf_kar98_noscopeolotov\shared.lua' - File not found or is empty (@gamemodes/terrortown/entities/weapons/weapon_hdtf_kar98_noscope.lua (line 4)) 1. unknown - gamemodes/terrortown/entities/weapons/weapon_hdtf_kar98_noscope.lua:4