Help with OpenVPN - Warning:! No server cert

Installed OpenVPN using FeaturePack Manager and got it to work with my workstation, I can connect to it. But when I try to connect to my WD using my smartphone, the software halts and keep reconnect receiving this message:

Fri Feb 14 21:13:00 2014 WARNING: No server certificate verification method has been enabled.  See http://openvpn.net/howto.html#mitm for more info.
Fri Feb 14 21:13:00 2014 NOTE: OpenVPN 2.1 requires ‘–script-security 2’ or higher to call user-defined scripts or executables

How do I solve this? I get this message on my windows machine aswell, but it just ignores it and establish a connection, but wont do on my htc phone…

My bad. Forgot to forward the port…