Npc Erro

[21/06/2015 02:13:42] [Error - Npc interface] 
[21/06/2015 02:13:42] data/npc/scripts/default.lua
[21/06/2015 02:13:42] Description: 
[21/06/2015 02:13:42] data/npc/scripts/default.lua:1: attempt to index global 'KeywordHandler' (a nil value)
[21/06/2015 02:13:42] [Warning - NpcScript::NpcScript] Cannot load script: data/npc/scripts/default.lua

[9/1/2017 1:50:1] [Error - NpcScript Interface] 
[9/1/2017 1:50:1] data/npc/scripts/Warmaster Addon 2.lua:onThink
[9/1/2017 1:50:2] Description: 
[9/1/2017 1:50:2] data/npc/scripts/Warmaster Addon 2.lua:95: attempt to call global 'doNpcSetCreatureFocus' (a nil value)
[9/1/2017 1:50:2] stack traceback:
[9/1/2017 1:50:3]     data/npc/scripts/Warmaster Addon 2.lua:95: in function <data/npc/scripts/Warmaster Addon 2.lua:94>