feat(website): update run a prover troubleshooting (#13407)

packages/website/pages/docs/guides/run-a-node.mdx

@@ -57,7 +57,8 @@ Finally, set the following environment variables:
 - L1_ENDPOINT_WS
 
 <Callout>
- You can get a Sepolia L1 endpoint from a few places, [Alchemy](https://www.alchemy.com/) is one popular example.
+  You can get a Sepolia L1 endpoint from a few places,
+  [Alchemy](https://www.alchemy.com/) is one popular example.
 </Callout>
 
 ### Enable your node as a prover (optional)
@@ -155,6 +156,13 @@ A [Grafana](https://grafana.com/) dashboard with a [Prometheus](https://promethe
 You can ignore any WARN logs.
 
 ### Node error logs 
+
+#### `error: L1_ID`
+The block that you want to prove has already been verified, you can ignore this.
+
+#### `error: L1_ALREADY_PROVEN`
+This block has been proven by someone else, but its not verified yet, you can ignore it.
+
 #### `Fatal: Failed to register the Ethereum service: database contains incompatible genesis`
 Try to remove the node with `docker compose down -v` and then try again.