[help] I need help with node availability

[StefanIsMe]

• what I tried to do: ...
• url of the page: https://pl-diagnose.on.fleek.co/#/diagnose/access-content?addr=%2Fip4%2F127.0.0.1%2Ftcp%2F4001%2Fp2p%2F12D3KooWJp8jbuy3yq7RrR3txP4kthhWudxy9d3nKLRdMQLaP523&backend=https%3A%2F%2Fpl-diagnose.onrender.com&cid=QmUkYoEYSMR3A3yiFqbQGc6M29F1ReELfZNbNzz3qsqZv4
• what I got:

An error occuredThe backend couldn't reach out to your node. It failed with the following error: failed to dial 12D3KooWJp8jbuy3yq7RrR3txP4kthhWudxy9d3nKLRdMQLaP523:

• [/ip4/127.0.0.1/tcp/4001] dial tcp4 127.0.0.1:4001: connect: connection refusedOur backend node couldn't reach this peer.Troubleshooting Steps:Solution 1solution 1 step Asolution 1 step BSolution 2solution 2 step Asolution 2 step B

• I don't have enough information to fix my issue because: ...

Details:

• title: An error occured
• issueRef: node availability
• rawData:

{
  "error": null,
  "data": {
    "id": "12D3KooWJp8jbuy3yq7RrR3txP4kthhWudxy9d3nKLRdMQLaP523",
    "connectToPeerError": "failed to dial 12D3KooWJp8jbuy3yq7RrR3txP4kthhWudxy9d3nKLRdMQLaP523:\n  * [/ip4/127.0.0.1/tcp/4001] dial tcp4 127.0.0.1:4001: connect: connection refused"
  }
}