RBAC plugin not working.

[crazy-canux]

Describe the bug

After integrate rbac plugin with backstage 1.25.2, it's not working.

{"level":"info","message":"RBAC backend plugin was enabled","plugin":"permission","service":"backstage","type":"plugin"}
Backend failed to start up Error: unable to verify the first certificate
    at TLSSocket.onConnectSecure (node:_tls_wrap:1659:34)
    at TLSSocket.emit (node:events:517:28)
    at TLSSocket._finishInit (node:_tls_wrap:1070:8)
    at ssl.onhandshakedone (node:_tls_wrap:856:12) {
  code: 'UNABLE_TO_VERIFY_LEAF_SIGNATURE'
}

Expected Behavior

works .

What are the steps to reproduce this bug?

1. backend change.
2. frontend change.
3. configuration change.

Versions of software used and environment

backstage: 1.25.2 "@janus-idp/backstage-plugin-rbac": "^1.18.2", "@janus-idp/backstage-plugin-rbac-backend": "^3.0.0",