message: docs: Document another error type
diff: @@ -443,9 +443,31 @@ TODO
  Failed to process paid query.
  +**Description**
  +
  +Failing to process a paid query can have a number of reasons:
  +
  +- The indexer service is out of sync with the network. Specifically, it
  + hasn't detected the allocations made by the indexer agent yet. The most
  + likely cause for this is that the network subgraph endpoint specified via
  + `INDEXER_SERVICE_NETWORK_SUBGRAPH_ENDPOINT` or `--network-subgraph-endpoint`
  + is unhealthy and failing repeatedly. This particular situation would manifest
  + itself in a `Unable to sign the query response attesattion` error message.
  +- The indexer service either fails to forward queries to the graph/query node
  + or nodes, or the graph/query node or nodes fail to execute the query.
  +- The indexer service fails to push the payment or attestation into the
  + server wallet, either due to a problem with the database or corrupt/invalid
  + payment or receipt messages.
  +
  **Solution**
  -TODO
  +Due to the complexity of this error message, the best advice is to grep the
  +indexer service logs for the `IE032` error and create an issue on
  +https://github.com/graphprotocol/indexer/issues:
  +
  +```bash
  +grep <logs> | grep IE032 | pino-pretty -t
  +```
  ## IE033
  