Upload-salt-reports or add an exsisting salt-minion

I’ve got a Foreman and a Salt Master running on one machine Ubuntu 18.04.
Now I got the issue that I am not able to add excisiting Hosts to Foreman-Ui.
Inside the foreman UI I am able to accept the keys from the Clients but no nothing happen after that.

While running upload-salt-reports, I get an error:

File “/usr/sbin/upload-salt-reports”, line 144, in
File “/usr/sbin/upload-salt-reports”, line 100, in upload
ctx.load_cert_chain(certfile=config[’:ssl_cert’], keyfile=config[’:ssl_key’])

foreman Version > 1.20.1
ruby-foreman-salt > 10.1.0-1
ruby-smart-proxy-salt > 2.1.9-1
salt-api > 2018.3.3
salt-common > 2018.3.3
salt-master > 2018.3.3

and a Puppet CA is running.

port: 9192
host: localhost
ssl_crt: /etc/puppetlabs/puppet/ssl/certs/foreman.test.sit.fraunhofer.de.pem
ssl_key: /etc/puppetlabs/puppet/ssl/private_keys/foreman.test.sit.fraunhofer.de.pem
debug: true
disable_ssl: false

ext_nodes: /usr/bin/foreman-node

I checked all ssl connection, disabled it for the api but still this issues. I dont know where to look further.

I hope for help !