OpenVPN to WAN

[Uzzi]

Hi, I've Opnsense server with these interfaces:
igb0 Wan----->internet router
igb1 LAN
igb3 From Sites
I've configured a OnVPN server published on From Sites IP
A vm with OpenVPN client is connected to OpnVPN Server but doesn't navigate on internet by OpenSense WAN, but ping Opnsense Wan ip interface.

Opensense is working fine and navigate to internet correctly.
How can I see why?
What could be the problem?
Regards