If an issue with starting: GTA V folder screenshot GTA V/update/x64/dlcpacks screenshot Filepath to FiveM folder FiveM client folder screenshot Did you try to disable/uninstall your Anti-virus?
Also add what you already tried so far.
how can i make pvp on my sever so i can kill other players
Citizen.CreateThread(function()
while true do
Citizen.Wait(10)
SetCanAttackFriendly(PlayerPedId(), true, false)
NetworkSetFriendlyFireOption(true)
end
end)