Magic walls rune throw at Invisible Monster

[Newone0]

Like in title if a monster becomes invisible, I can hit it with magic wall rune.
I'm using otservbr

magic_wall_rune.lua

function onCastSpell(creature, variant)
    return creature:conjureItem(2260, 2293, 3)
end

magic_wall.lua

local combat = Combat()
combat:setParameter(COMBAT_PARAM_DISTANCEEFFECT, CONST_ANI_ENERGY)

function onCreateMagicWall(creature, tile)
    local item = Game.createItem(Game.getWorldType() == WORLD_TYPE_NO_PVP and ITEM_MAGICWALL_SAFE or ITEM_MAGICWALL, 1, tile)
    item:setAttribute(ITEM_ATTRIBUTE_DURATION, math.random(14000, 20000))
end

combat:setCallback(CALLBACK_PARAM_TARGETTILE, "onCreateMagicWall")

local spell = Spell("rune")
function spell.onCastSpell(creature, variant, isHotkey)
    return combat:execute(creature, variant)
end


spell:name("Magic Wall Rune")
spell:group("attack")
spell:id(86)
spell:cooldown(2 * 1000)
spell:groupCooldown(2 * 1000)
spell:level(32)
spell:magicLevel(9)
spell:runeId(2293)
spell:charges(3)
spell:isBlocking(true, true)
spell:allowFarUse(true)
spell:register()