I can't pick up any of the doom items

My console says

[gmDoom] bad argument #3 to 'Add' (function expected, got nil)
1. Add - lua/includes/modules/hook.lua:31
2. unknown - lua/doom/player.lua:634
3. include - [C]:-1
4. SharedInclude - lua/doom/scripts.lua:8
5. unknown - lua/doom/scripts.lua:82
6. include - [C]:-1
7. unknown - lua/autorun/doom.lua:3

[gmDoom] bad argument #2 to 'Add' (string expected, got table)
1. Add - lua/includes/modules/hook.lua:34
2. GetPlayerInfo - lua/doom/player.lua:76
3. func - lua/doom/player.lua:528
4. unknown - lua/includes/extensions/net.lua:33


(if that's any help/clue)