On join IP

on join:
	set {_value} to value "FirstJoin.%player%" get of "plugins/Skript/scripts/IP/IPs.yml"
	if {_value} is not set:
		set "FirstJoin.%player%" to "%player's ip%" in yaml file "plugins/Skript/scripts/IP/IPs.yml"
	set "LastLogin.%player%" to "%player's ip%" in yaml file "plugins/Skript/scripts/IP/IPs.yml"