Unable to access restconf/operational/network-topology:network-topology/topology/topology-netconf after restart of ODL

The URL works OK after the first start of ODL. But after the restart this response is received:

GET localhost:8181/restconf/operational/network-topology:network-topology/topology/topology-netconf
{
"topology": [
{
"topology-id": "topology-netconf",
"node": [

{ "node-id": "controller-config", "netconf-node-topology:connection-status": "connecting", "netconf-node-topology:port": 1830, "netconf-node-topology:host": "127.0.0.1" }

]
}
]
}

WORKAROUD:
When the file assembly/configuration/RSA.pk is deleted the URL is works correctly again.

Attached logs includes logs from the case when the URL is not accessible (restarted ODL without deleting the RSA.pk file).