《魔兽世界(WOW)台服》【问题】侦错插件【BUGSACK】中错误如何解读

1232x AstralKeys\Character Info.lua:49: attempt to index field '?' (a nil value)

[string "@AstralKeys\Character Info.lua"]:49: in function `GetCharacterBestLevel'

[string "@AstralKeys\Key Information.lua"]:18: in function `method'

[string "@AstralKeys\Events.lua"]:84: in function <AstralKeys\Events.lua:80>

Locals:

id = false

(*temporary) = nil

(*temporary) = "attempt to index field '?' (a nil value)"