esx_core/locales/en.lua

Locales['en'] = {
  ['not_whitelisted']     = 'you are not whitelisted on this server',
  ['steamid_error']       = 'there seems to be a problem with your SteamID',
  ['help_whitelist_add']  = 'add someone to the whitelist',
  ['help_whitelist_load'] = 'reload the whitelist',
}