Lua Anti AOE Error "sorry not possible"

[beliar34]

Hello. I'm using an Anti-AOE creatureevent script by Erexo that's supposed to only deal damage to players you are targeting using AOE spells.
When i want mark player i get message "sorry not possible"

The script:

function onStatsChange(cid, attacker, type, combat, value)
    if(attacker and isPlayer(attacker) and (type == STATSCHANGE_HEALTHLOSS or type == STATSCHANGE_MANALOSS) and getCreatureName(getCreatureTarget(attacker)) ~= getCreatureName(cid)) then
        if combat ~= COMBAT_HEALING then
            return false
        end
    end
return true
end
function onCombat(cid, target)
    if(target and isPlayer(target) and getCreatureName(getCreatureTarget(cid)) ~= getCreatureName(target)) then
        return false
    end
return true
end

I can't hit anyplayer something like non-pvp

 

[beliar34]

bump "Sorry not possible"