I can't fix a script!

FiveM Resource Development Discussion
1

I try to fix a script but in didn’t succeed ! My scripts :
Client:

local distance = GetDistanceBetweenCoords(playerPos.x, playerPos.y, playerPos.z, Position.Recolet.x, Position.Recolet.y, Position.Recolet.z, true)
    if not IsInVehicle() then
      if distance < Position.Recolet.distance then
        ShowInfo('~b~Appuyez sur ~g~E~b~ pour récolter', 0)
        if IsControlJustPressed(1, 38) then
          job = TriggerServerEvent("mine:job")
          Wait(100)
          if job == 4 then
            TriggerEvent("player:getQuantity", 23)
            roche = qte
            TriggerEvent("player:getQuantity", 17)
            cuivre = qte
            TriggerEvent("player:getQuantity", 18)
            fer = qte
            TriggerEvent("player:getQuantity", 19)
            diams = qte```

Server :

require "resources/essentialmode/lib/MySQL"
MySQL:open("127.0.0.1", "gta5_gamemode_essential", "root", "")

function nameJob(player)
  local executed_query = MySQL:executeQuery("SELECT `job` FROM `users` WHERE `identifier` = '@identifier'", {['@identifier'] = player})
  local result = MySQL:getResults(executed_query, {'job'}, "identifier")
  return tostring(result[1].job)
end

RegisterServerEvent('mine:job')

AddEventHandler('mine:job', function()
  TriggerEvent('es:getPlayerFromId', source, function(user)
    local player = user.identifier
    local job = nameJob(player)

    return job

  end)
end)

Thank you !