Hi,
It sounds like you are trying to use some kind of shared ssl proxy server, that is not going to work with mojoPortal.
Your site is really running at
http://cms-websimples.com/
not http://cms-websimples.secure.omnis.com (that must be a proxied shared ssl site)
to use SSL you need to install an SSL certificate for cms-websimples.com, you cannot do it any other way.
Hope it helps,
Joe