Lua Lost Database Connection(?) - Players Can't LOG IN/OUT - CAN'T SAVE THEM

[Gabriel Tibiano]

Hey!
My server is returning this error and when i get this (usually 4 to 4 hours), players can't log in or out, i can't execute save, my connection to database just get lost(?), but xampp still running and website is perfectly working (accounts can log in and log out).
I dont know, i really need your help guys,

exp_worst.lua

function onLogout(cid)
local play = db.getResult("SELECT * FROM `players` WHERE `id` = ".. getPlayerGUID(cid) ..";")
local exp_today = (getPlayerExperience(cid)-(play:getDataInt("exphist_lastexp"))) 
if (exp_today < (play:getDataInt("exp_worst"))) then
db.executeQuery("UPDATE `players` SET `exp_worst` = " .. exp_today .. ", `expw_data`=" .. os.time() .. ", `expw_lv`=" .. getPlayerLevel(cid) .. " WHERE `id` = '" .. getPlayerGUID(cid) .. "';")
end  
return true
end

exp_record.lua

function onLogout(cid)
local play = db.getResult("SELECT * FROM `players` WHERE `id` = ".. getPlayerGUID(cid) ..";")
local exp_today = math.max((getPlayerExperience(cid)-(play:getDataInt("exphist_lastexp"))),(play:getDataInt("exphist1")),(play:getDataInt("exphist2")))  

if (exp_today - (play:getDataInt("exp_record"))) > 0 then
db.executeQuery("UPDATE `players` SET `exp_record` = " .. exp_today .. ", `expr_data`=" .. os.time() .. ", `expr_lv`=" .. getPlayerLevel(cid) .. " WHERE `id` = '" .. getPlayerGUID(cid) .. "';")
end  
return true
end

004-database.lua

if(result == nil) then
    print("> WARNING: Couldn't load database lib.")
    return
end

Result = createClass(nil)
Result:setAttributes({
    id = -1,
    query = ""
})

function Result:getID()
    return self.id
end

function Result:setID(_id)
    self.id = _id
end

function Result:getQuery()
    return self.query
end

function Result:setQuery(_query)
    self.query = _query
end

function Result:create(_query)
    self:setQuery(_query)
    local _id = db.storeQuery(self:getQuery())
    if(_id) then
        self:setID(_id)
    end

    return self:getID()
end

function Result:getRows(free)
    local free = free or false
    if(self:getID() == -1) then
        error("[Result:getRows] Result not set!")
    end

    local c = 0
    repeat
        c = c + 1
    until not self:next()

    local _query = self:getQuery()
    self:free()
    if(not free) then
        self:create(_query)
    end

    return c
end

function Result:getDataInt(s)
    if(self:getID() == -1) then
        error("[Result:getDataInt] Result not set!")
    end

    return result.getDataInt(self:getID(), s)
end

function Result:getDataLong(s)
    if(self:getID() == -1) then
        error("[Result:getDataLong] Result not set!")
    end

    return result.getDataLong(self:getID(), s)
end

function Result:getDataString(s)
    if(self:getID() == -1) then
        error("[Result:getDataString] Result not set!")
    end

    return result.getDataString(self:getID(), s)
end

function Result:getDataStream(s)
    if(self:getID() == -1) then
        error("[Result:getDataStream] Result not set!")
    end

    return result.getDataStream(self:getID(), s)
end

function Result:next()
    if(self:getID() == -1) then
        error("[Result:next] Result not set!")
    end

    return result.next(self:getID())
end

function Result:free()
    if(self:getID() == -1) then
        error("[Result:free] Result not set!")
    end

    self:setQuery("")
    local ret = result.free(self:getID())
    self:setID(-1)
    return ret
end

Result.numRows = Result.getRows
function db.getResult(query)
    if(type(query) ~= 'string') then
        return nil
    end

    local ret = Result:new()
    ret:create(query)
    return ret
end

 

[Gabriel Tibiano]

bumppppppp
please guys !!