Es extendet

[TripleSnake]

Take a look at this topic, it maybe more of a help.

Attempted to index a nil value (global 'ESX')

This should be at the top of your server file: ESX = nil TriggerEvent('esx:getSharedObject', function(obj) ESX = obj end)

As for the MYSQL error your getting, make sure you have entered the right details to your database.