unable to create new static users

i have asg 320 running on ver 8.300 today i try to create new user i am facing certification problem the error " cannot create certificate: signing vertificate request failed (256).

please help me i cannot create new user for any way from astaro i need to create new user for userportal and want to test ssl vpn..

thanks in advance....

Attached Images

new user error.jpg (59.4 KB)