What's wrong with the Team Menu?

Error Message:

[ERROR] gamemodes/area_61/gamemode/cl_menu.lua:6: attempt to index global ‘vgui’ (a nil value)

  1. unknown - gamemodes/area_61/gamemode/cl_menu.lua:6

(User was banned for this post ("Missed forum sticky - see DEVELOPER DISCUSSION for code help!" - NiandraLades))