@xlameee:
I already checked the vpn settings they are OK
Well you say that, but it isn't working and you haven't posted your VPN configuration or really any details at all so I'm doubting that you have it all set up properly.
Also, you named your interface VPN_LAN, do you have a normal LAN? Are you using a VPN server or client? What are your firewall rules? What are your NAT rules? Is there any useful output in your logs?
You said it was working for 8 months, what changed? Did it just stop working one day? If so there is probably something useful in your logs.
We need details if you want help. A list of your interfaces and saying you can't ping stuff doesn't mean anything.