[HELP] bad arguement #1 ipairs table expected got boolean

[99isme]

local db = dbConnect( "mysql", "dbname="..db_name..";host="..host, user, password )
dbExec(db, "CREATE TABLE if not EXISTS 'banking'(id INT NOT NULL PRIMARY KEY AUTO_INCREMENT, name TEXT)")

local database_online	-- Is banking Database Online?
local banking = {}			-- 'banking' Database Cache

addEvent("onDatabaseLoad", true)	-- Triggers when gti database is ready
addEvent("onLogDatabaseLoad", true)	-- Triggers when log database is ready

-- Database Cache
------------------>>

addEventHandler("onResourceStart", resourceRoot, function()
    db = dbConnect( "mysql", "dbname="..db_name..";host="..host, user, password )
	local exec = dbExec(db, "CREATE TABLE IF NOT EXISTS 'banking'")
	local query = dbQuery(cacheDatabase, db, "SELECT * FROM 'banking'")
	local result, rows, msg = dbPoll(query, 0)
end)

function cacheDatabase(qh)
	local result = dbPoll(qh, 0)
	banking["Console"] = {}
	for i,row in ipairs(result) do
		banking[row.name] = {}
		for column,value in pairs(row) do
			if (column ~= "id" or column ~= "name") then
				banking["Console"][column] = true
				if (value == "true") then value = true end
				if (value == "false") then value = false end
				banking[row.name][column] = value
			end
		end
	end
	database_online = true
	triggerEvent("onDatabaseLoad", resourceRoot, "banking")
end

-- Banking Data Exports
------------------------>>

function setBankData(account, key, value)
	if (not database_online) then return false end
	if (not account or not key) then return false end
	if (isGuestAccount(account) or type(key) ~= "string") then return false end
	local account = getAccountName(account)
	
	if (type(banking[account]) ~= "table") then
		banking[account] = {}
		if (getServerPort() == SERVER_PORT) then
			dbExec(db, "INSERT INTO `banking`(name) VALUES(?)", account)
		end
	end
	
	if (banking["Console"][key] == nil) then
		if (getServerPort() == SERVER_PORT) then
			dbExec(db, "ALTER TABLE `banking` ADD `??` text", key)
		end
		banking["Console"][key] = true
	end
	
	banking[account][key] = value
	if (getServerPort() == SERVER_PORT) then
		if (value ~= nil) then
			dbExec(db, "UPDATE `banking` SET `??`=? WHERE name=?", key, tostring(value), account)
		else
			dbExec(db, "UPDATE `banking` SET `??`=NULL WHERE name=?", key, account)
		end
	end
	return true
end

function getBankData(account, key)
	if (not database_online) then return end
	if (not account or not key) then return end
	if (isGuestAccount(account) or type(key) ~= "string") then return end
	
	local account = getAccountName(account)
	if (banking[account] == nil) then return end
	if (banking[account][key] == nil or banking[account][key] == "nil") then return end
	
	if (key == "pin" or key == "acc_number") then
		return banking[account][key]
	end
	return tonumber(banking[account][key]) or banking[account][key]
end

addEvent("onAccountDelete")
addEventHandler("onAccountDelete", root, function(account)
	dbExec(db, "DELETE FROM `banking` WHERE name=?", account)
	banking[account] = nil
end)

-- Transaction Log
------------------->>
 
local dbLogs = dbConnect( "mysql", "dbname="..db_name..";host="..host, user, password )

function addLogToDatabase(category, timestamp, text, cash, balance, player, account)
	dbExec(dbLogs, "CREATE TABLE IF NOT EXISTS `log_"..category.."`(id INT NOT NULL AUTO_INCREMENT, timestamp INT, text TEXT, cash INT, balance INT, player TEXT, account TEXT, ip TEXT, serial TEXT, PRIMARY KEY(id))")
	
	local serial, ip
	if (isElement(player)) then
		serial = getPlayerSerial(player)
		ip = getPlayerIP(player)
		player = getPlayerName(player)
	end
	dbExec(dbLogs, "INSERT INTO `log_"..category.."`(timestamp, text, cash, balance, player, account, ip, serial) VALUES(?, ?, ?, ?, ?, ?, ?, ?)", timestamp, text, cash, balance, player, account, ip, serial)
	return true
end

function getAccountLogs(player, account, data_table, recovery)
	if (not player or not account or not data_table) then return false end
	if (data_table ~= "bank" and data_table ~= "cash" and data_table ~= "groupbank") then return false end
	if ( recovery ) then
		dbQuery(recoveryCallback, {player, data_table}, dbLogs, "SELECT * FROM `log_"..data_table.."` WHERE `account`=? ORDER BY `timestamp` DESC LIMIT 500", account)
	else
		dbQuery(returnDatabase, {player, data_table}, dbLogs, "SELECT * FROM `log_"..data_table.."` WHERE `account`=? ORDER BY `timestamp` DESC LIMIT 250", account)
	end
end

function returnDatabase(qh, player, data_table)
	local result = dbPoll(qh, 0)
	triggerEvent("onLogDatabaseLoad", player, data_table, result)
end

addEvent("onAccountDelete")
addEventHandler("onAccountDelete", root, function(account)
	dbExec(dbLogs, "DELETE FROM `log_bank` WHERE account=?", account)
	dbExec(dbLogs, "DELETE FROM `log_cash` WHERE account=?", account)
end)

function getDatabaseLogs()
	return dbLogs
end

bad arguement #1 ipairs table expected got boolean

from the cachedatabase line

[DiSaMe]

It means you pass a boolean to ipairs, which means "result" is a boolean. According to dbPoll documentation, it returns false if there's something wrong, in which case it returns two more values indicating what went wrong. So if you change this:

local result = dbPoll(qh, 0)

to this:

local result, error_code, msg = dbPoll(qh, 0)
if result == false then
	outputDebugString("Error code: "..error_code)
	outputDebugString("Error message: "..msg)
end

it will display a more detailed message.