Error Fetching Campaigns Entity from Salesforce Marketing Cloud Connector - "[10000] A general error occurred while trying to retrieve campaigns

We are currently using a GCP application integration to connect to Salesforce Marketing Cloud. Our goal is to fetch a list of the Campaigns entity.

However, when attempting to list or retrieve data for the Campaigns entity, we are consistently encountering the following error response:

{
  "error": {
    "code": 400,
    "details": [
      {
        "@type": "type.googleapis.com/google.rpc.ErrorInfo",
        "metadata": {
          "cause": "[10000] \"A general error occurred while trying to retrieve campaigns\". A general error occurred while trying to retrieve campaigns. ",
          "conditions": "",
          "connection_type": "SFMarketingCloud",
          "entity_type": "Campaigns"
        },
        "message": "Unable to list entities.",
        "status": "FAILED_PRECONDITION"
      }
    ]
  }
}