Frontend: core access token not set

Hi there, I have installed oCIS without Docker. Right now the frontend service spams the following errors in my log:

  "level": "warn",
  "service": "frontend",
  "pkg": "rhttp",
  "traceid": "00000000000000000000000000000000",
  "time": "2023-02-15T12:05:33.294714597Z",
  "message": "core access token not set"
2023/02/15 12:05:33 http: TLS handshake error from EOF

I couldn’t find information on this topic and am not sure if it needs further investigation.