Openvpn configuration

please I have this problem how I can solve it knowing that I managed to configure the openvpn server,

<tun0 Uptime: 0h 8m 28s
MAC-Address: 00: 00: 00: 00: 00: 00
RX: 3.46 KB (66 Pkts.)
TX: 0 B (0 Pkts.)>

For a start you can post here the server and client configurations, network and firewall configs too.
Use preformatted text (the </> button) when pasting console output.