Error when using the castle book

[vitinhoo96]

Please can someone help me

I use OTX server



I have an error that when using the book, to see which guild has the castle domain, an error appears

error that appears

[4/5/2022 15:5:29] [Error - Action Interface]
[4/5/2022 15:5:29] data/actions/scripts/events/realCastle.lua:onUse
[4/5/2022 15:5:29] Description:
[4/5/2022 15:5:29] data/actions/scripts/events/realCastle.lua:3: attempt to concatenate a boolean value
[4/5/2022 15:5:29] stack traceback:
[4/5/2022 15:5:29]     data/actions/scripts/events/realCastle.lua:3: in function <data/actions/scripts/events/realCastle.lua:1>

this is the script that tells where the error is

function onUse(cid, item, frompos, item2, topos)
    if item.uid == 61466 then
        local guild = getGlobalStorageValue(realCastle.guild_storage) > 1 and "a guild "..getGuildNameByID(getGlobalStorageValue(realCastle.guild_storage)).." possui o dominio" or "nenhuma guild possui o dominio do castelo"
        local sto = realCastle.date_storages
        local gsto = getGlobalStorageValue
        local time = gsto(sto[1]).."/"..gsto(sto[2]).."/"..gsto(sto[3])
        local domain = realCastle.isOpen() and "as guilds estao batalhando pelo dominio do castelo" or guild
        local msg = " --------[CASTLE]-------\n\n\nAtualmente "..domain..".\n\nProxima batalha: "..time.." as 21:00."
        doShowTextDialog(cid,8977,msg)
        return true
    end
    if not realCastle.isOpen() then
        doTeleportThing(cid,getTownTemplePosition(1))
        return true
    end
    if not realCastle.isDominating(cid) then
        realCastle.domain(cid)
        doSendMagicEffect(getThingPos(cid), CONST_ME_CRAPS)
    else
        doPlayerSendCancel(cid,"Sua guild ja esta com o dominio do castelo.")
    end
    return true
end