@Performances I don't know what you mean by installing anti cheat.
You have to reinstall the whole MTA client which also installs these moduls.
Also MTA wiki says the next:
SD #16 Disallow disabled anti-cheat components. This is triggered when an anti-cheat component can not start. It is usually due to some problem with the PC and might be fixed by a reboot. Can also be triggered by a virus.
You can't try now, server is closed.