Nil value for npcID in Molten Core

[wardz]

Forwarding this error from a Curseforge comment:

The lib causes errors in MC:

Message: ...ils\Libs\LibClassicCasterino\LibClassicCasterino.lua:74: attempt to concatenate local 'npcID' (a nil value)
Time: Thu Sep 19 20:44:28 2019
Count: 3
Stack: ...ils\Libs\LibClassicCasterino\LibClassicCasterino.lua:74: attempt to concatenate local 'npcID' (a nil value)
...ils\Libs\LibClassicCasterino\LibClassicCasterino.lua:74: in function <...ils\Libs\LibClassicCasterino\LibClassicCasterino.lua:72>
...ils\Libs\LibClassicCasterino\LibClassicCasterino.lua:142: in function <...ils\Libs\LibClassicCasterino\LibClassicCasterino.lua:124>
(tail call): ?

Locals: guid = "Player-4440-0025767F"
spellName = "Wrath"
_ = "Player"
_ = "4440"
_ = "0025767F"
_ = nil
_ = nil
npcID = nil
(*temporary) = nil
(*temporary) = "Wrath"
(*temporary) = "attempt to concatenate local 'npcID' (a nil value)"

Message: ...ils\Libs\LibClassicCasterino\LibClassicCasterino.lua:74: attempt to concatenate local 'npcID' (a nil value)
Time: Thu Sep 19 20:44:36 2019
Count: 8
Stack: ...ils\Libs\LibClassicCasterino\LibClassicCasterino.lua:74: attempt to concatenate local 'npcID' (a nil value)
...ils\Libs\LibClassicCasterino\LibClassicCasterino.lua:74: in function <...ils\Libs\LibClassicCasterino\LibClassicCasterino.lua:72>
...ils\Libs\LibClassicCasterino\LibClassicCasterino.lua:165: in function <...ils\Libs\LibClassicCasterino\LibClassicCasterino.lua:124>
(tail call): ?

Locals: guid = "Player-4440-0018C2CA"
spellName = "Adrenaline Rush"
_ = "Player"
_ = "4440"
_ = "0018C2CA"
_ = nil
_ = nil
npcID = nil
(*temporary) = nil
(*temporary) = "Adrenaline Rush"
(*temporary) = "attempt to concatenate local 'npcID' (a nil value)"

[d87]

That's been fixed a long time ago.