Solved Task system edit.

[Shadowman321]

local tasks =
{
	[1] = {questStarted = 1515, questStorage = 65015, killsRequired = 5, raceName = "Trolls", rewards = {{enable = true, type = "exp", values = 2000}, {enable = true, type = "money", values = 20000}}},
	[2] = {questStarted = 1516, questStorage = 65016, killsRequired = 5, raceName = "Dragons", rewards = {{enable = true, type = "exp", values = 20000}, {enable = true, type = "money", values = 20000}}},
	[3] = {questStarted = 1517, questStorage = 65017, killsRequired = 50, raceName = "Dragon Lords", rewards = {{enable = true, type = "exp", values = 20000}, {enable = true, type = "money", values = 200000}}}


}
 
local rankStorage = 32150
 

function onSay(cid, words, param)
	if(param == '') then
		doPlayerSendTextMessage(cid, MESSAGE_STATUS_CONSOLE_BLUE, "Wpisz !task list aby zobaczyc liste taskow. !task report aby sprawdzic ile potworow zabiles lub otrzymac nagrode. !task numer aby wybrac zadanie.")
		return true
	end
	if (param == 'list') then
		local text = "Lista zadan:"
		for i = 1, table.maxn(tasks) do
			text = text .. "\n" .. i .. "  -  " .. tasks[i].raceName .. (getCreatureStorage(cid, tasks[i].questStarted) == 2 and " [Done]" or "")
		end
		doShowTextDialog(cid, 5956, text)
end
	if tasks[tonumber(param)] then
		param = tonumber(param)
		if getCreatureStorage(cid, tasks[param].questStarted) == 1 then
			doPlayerSendTextMessage(cid, 22, "Jestes w trakcje wykonywania tego zadania.")
			return true
		end
		for k, v in pairs(tasks) do
			if getCreatureStorage(cid, v.questStarted) == 1 and param ~= k then
				doPlayerSendTextMessage(cid, 22, "Wlasnie wykonujesz inne zadanie.")
				return true
			end
		end

		doCreatureSetStorage(cid, tasks[param].questStarted, 1)
		doPlayerSendTextMessage(cid, 22, "Rozpoczales zadanie numer:  " .. param .. ", pamietaj, w tym zadaniu musisz pokonac " .. tasks[param].killsRequired .. " " .. tasks[param].raceName .. ". Powodzenia!")
	end
	if (param == 'report') then
		for k, v in pairs(tasks) do
			if getCreatureStorage(cid, v.questStarted) == 1 then
				if getCreatureStorage(cid, v.questStorage) >= v.killsRequired then
					for i = 1, table.maxn(v.rewards) do
						if(v.rewards[i].enable) then
							if isInArray({"boss", "teleport", 1}, v.rewards[i].type) then
								doTeleportThing(cid, v.rewards[i].values)
							elseif isInArray({"exp", "experience", 2}, v.rewards[i].type) then
								doPlayerAddExperience(cid, v.rewards[i].values)
							elseif isInArray({"item", 3}, v.rewards[i].type) then
								doPlayerAddItem(cid, v.rewards[i].values[1], v.rewards[i].values[2])
							elseif isInArray({"money", 4}, v.rewards[i].type) then
								doPlayerAddMoney(cid, v.rewards[i].values)
							elseif isInArray({"storage", "stor", 5}, v.rewards[i].type) then
								doCreatureSetStorage(cid, v.rewards[i].values[1], v.rewards[i].values[2])
							elseif isInArray({"points", "rank", 2}, v.rewards[i].type) then
								doCreatureSetStorage(cid, rankStorage, getCreatureStorage(cid, rankStorage) + v.rewards[i].values)
							else
								print("[Warning - Error::Killing in the name of::Tasks config] Bad reward type: " .. v.rewards[i].type .. ", reward could not be loaded.")
							end
						end
					end
					local rank = getCreatureStorage(cid, rankStorage)
					doPlayerSendTextMessage(cid, 22, "Swietnie!... skonczyles zadanie numer " .. k .. ". Dobra robota.")
					doCreatureSetStorage(cid, v.questStarted, -1)
					doCreatureSetStorage(cid, v.questStorage, -1)
					break
				else
					if getCreatureStorage(cid, v.questStorage) < 0 then
						doCreatureSetStorage(cid, v.questStorage, 0)
					end
					doPlayerSendTextMessage(cid, 22, "W tym momencie " .. getCreatureStorage(cid, v.questStorage) .. " " .. v.raceName .. " pokonanych, musisz zabic " .. v.killsRequired .. ".")
					break
				end
			elseif getCreatureStorage(cid, v.questStarted) == -1 then
			doPlayerSendTextMessage(cid, 22, "Nie rozpoczales jeszcze zadnego tasku.")
			end
		end
	end
	return true
end

Every time when i report task it send messages:

01:57 Nie rozpoczales jeszcze zadnego tasku.
01:57 Nie rozpoczales jeszcze zadnego tasku.
01:57 W tym momencie 1 Dragon Lords pokonanych, musisz zabic 50.

But it should send only:

01:57 W tym momencie 1 Dragon Lords pokonanych, musisz zabic 50.

There is condition "elseif getCreatureStorage(cid, v.questStarted) == -1 then", and while i got active task, v.questStarted storage = 1.
So, i don't know whats wrong.

Just added "break".