TFS 1.X+ magic error help

[isac001]

bug:

Lua Script Error: [Spell Interface]
data/spells/scripts/attack/genki dama.lua:onCastSpell
LuaScriptInterface::luaAddEvent(). Argument #3 is unsafe
stack traceback:
        [C]: in function 'addEvent'
        data/spells/scripts/attack/genki dama.lua:33: in function <data/spells/scripts/attack/genki dama.lua:31>

Script:

local combat = Combat()
combat:setParameter(COMBAT_PARAM_TYPE, COMBAT_PHYSICALDAMAGE)
combat:setParameter(COMBAT_PARAM_DISTANCEEFFECT, 116)

function onGetFormulaValues(player, level, magicLevel)
    local min = (level / 10) + (magicLevel / 10) + 4
    local max = (level / 6) + (magicLevel / 6) + 6
    return -min, -max
end

combat:setCallback(CALLBACK_PARAM_LEVELMAGICVALUE, "onGetFormulaValues")

local function castSpellEvent(creatureId, variant)
    local creature = Creature(creatureId)
    if not creature then
        return
    end
    combat:execute(creature, variant)
end

local function castSpellEvent2(creatureId)
    local creature = Creature(creatureId)
    if not creature then
        return
    end
    local position = creature:getPosition()
    local effectPosition = Position({x = position.x + 2, y = position.y + 2, z = position.z})
    effectPosition:sendMagicEffect(141)
end

function onCastSpell(creature, variant)
    addEvent(castSpellEvent, 0, creature:getId(), variant)
    addEvent(castSpellEvent2, 300, creature:getTarget())
    return true
end

 

[Xikini]

bug:

Lua Script Error: [Spell Interface]
data/spells/scripts/attack/genki dama.lua:onCastSpell
LuaScriptInterface::luaAddEvent(). Argument #3 is unsafe
stack traceback:
        [C]: in function 'addEvent'
        data/spells/scripts/attack/genki dama.lua:33: in function <data/spells/scripts/attack/genki dama.lua:31>

Script:

local combat = Combat()
combat:setParameter(COMBAT_PARAM_TYPE, COMBAT_PHYSICALDAMAGE)
combat:setParameter(COMBAT_PARAM_DISTANCEEFFECT, 116)

function onGetFormulaValues(player, level, magicLevel)
    local min = (level / 10) + (magicLevel / 10) + 4
    local max = (level / 6) + (magicLevel / 6) + 6
    return -min, -max
end

combat:setCallback(CALLBACK_PARAM_LEVELMAGICVALUE, "onGetFormulaValues")

local function castSpellEvent(creatureId, variant)
    local creature = Creature(creatureId)
    if not creature then
        return
    end
    combat:execute(creature, variant)
end

local function castSpellEvent2(creatureId)
    local creature = Creature(creatureId)
    if not creature then
        return
    end
    local position = creature:getPosition()
    local effectPosition = Position({x = position.x + 2, y = position.y + 2, z = position.z})
    effectPosition:sendMagicEffect(141)
end

function onCastSpell(creature, variant)
    addEvent(castSpellEvent, 0, creature:getId(), variant)
    addEvent(castSpellEvent2, 300, creature:getTarget())
    return true
end

change

addEvent(castSpellEvent2, 300, creature:getTarget())

to

addEvent(castSpellEvent2, 300, creature:getTarget():getId())