This happen when i join my server, i cant use F2 menu, i cant see player status, my user info wont load in DB, so nothing was working, the only thing that was working is esx_rpchat
This is a screenshot of how the error in .cmd

I was about to open “Start_Server.bat”
But i opened FXServer.exe instant

I deleted all my sql files and reloaded the files again, but it wont work, i did everything to make it work but nothing is really working

Seems as though esx_identity is not getting anything from the database which is why it’s showing a nil value. My guess is that you didn’t switch essentialmode to use MySQL so you have no player information.
Do not start FXServer.exe. There is a reason you create a batch file(Start_Server.bat).