ssl error on catalogjob / no sync between registry and portus

[cheGGo]

I've set up a stack on rancher using the community-catalog - I've provided a directory on a shared volume and a fqdn (for a self-signed certificate which created during setup for me)

After the app-stack launched everything works fine, except the sync between registry and portus.
In your security paragraph of the README you wrote for the self-signed cert: '[...] this can be replaced if necessary.'

So Issumed it is possible to use this whole setup with a self-signed cert, escpecially this setup will run in a private, non-public environment, isn't it?

The logfile shows:

12/23/2016 2:59:19 PMI, [2016-12-23T13:59:19.037270 SUSE#85] INFO -- : Perform CatalogJob
12/23/2016 2:59:19 PMException: SSL_connect returned=1 errno=0 state=unknown state: certificate verify failed
12/23/2016 2:59:19 PMI, [2016-12-23T13:59:19.082428 SUSE#85] INFO -- : Finished CatalogJob in 0.04 seconds

Is there any Parameter which I overlook or a bug?

Thanks in advance!