As nieldk says you should put the full path for each file, I have mines in :
/home/user/MyDocs/.documents/vpn/

Also you seem to get a reply from 8.8.8.8 but I think that it is using your gprs0 interface (as the vpn doesn't seem to be up).

Try first to fix the path to the ca.crt, crl.pem and pass.txt and try to connect again.