Lambda function returning 401 error when trying to query dynamodb

I'm trying to get this lambda function to read the database whenever a new object is inserted. The function was set up by following these steps, and I gave it access to the necessary operations in the command line.

However, on CloudWatch it still returns a 401 error. This is the function:

const axios = require('axios');
const gql = require('graphql-tag');
const graphql = require('graphql');
const { print } = graphql;

const getFriendRequest = gql`
  query GetFriendRequest($sender: ID!, $receiver: ID!) {
    getFriendRequest(sender: $sender, receiver: $receiver) {
      sender
      receiver
      createdAt
      updatedAt
    }
  }
`

exports.handler = async (event, context) => {
  //eslint-disable-line

  const record = event.Records[0];
  console.log(record);

  if (record.eventName == "INSERT") {
    try {
      console.log('in the axios phase');
      const graphqlData = await axios({
        url: process.env.API_FITNESSPROJECT_GRAPHQLAPIENDPOINTOUTPUT,
        method: 'post',
        headers: {
          'x-api-key': process.env.API_FITNESSPROJECT_GRAPHQLAPIIDOUTPUT
        },
        data: {
          query: print(getFriendRequest),
          variables: {
            sender: JSON.stringify(record.dynamodb.NewImage.receiver.S),
            receiver: JSON.stringify(record.dynamodb.NewImage.sender.S),
          }
        }
      })
      const body = {
        graphqlData: graphqlData.data.data.getFriendRequest
      }
      console.log(graphqlData.data.data.getFriendRequest);
      return {
        statusCode: 200,
        body: JSON.stringify(body),
        headers: {
          "Access-Control-Allow-Origin": "*",
        }
      }
    } catch (err) {
      console.log('error posting to appsync: ', err);
    }

    //read the friendrequest table to see if an opposing friend request appears
    //if so, read the friendship table to see if a friendship between these two users appears
    //if not, make a friendship
    //if so, increment the friendship's hifives.
  }

  return Promise.resolve('Successfully processed DynamoDB record');
};

I'm trying to read the table whenever someone inserts a new object into the table, but it returns a 401 error.

Edit: Here are the permission policies.

1. amplify-lambda-execution-policy

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Action": [
                "appsync:Create*",
                "appsync:StartSchemaCreation",
                "appsync:GraphQL",
                "appsync:Get*",
                "appsync:List*",
                "appsync:Update*",
                "appsync:Delete*"
            ],
            "Resource": [
                "arn:aws:appsync:us-west-2:213277979580:apis/rmzuppsajfhzlfgjehczargowa/*"
            ],
            "Effect": "Allow"
        }
    ]
}

2. amplify-lambda-execution-policy-FriendRequest

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Action": [
                "dynamodb:DescribeStream",
                "dynamodb:GetRecords",
                "dynamodb:GetShardIterator",
                "dynamodb:ListStreams"
            ],
            "Resource": "arn:aws:dynamodb:us-west-2:213277979580:table/FriendRequest-rmzuppsajfhzlfgjehczargowa-apisecure/stream/2020-12-11T07:48:02.462",
            "Effect": "Allow"
        }
    ]
}

3. amplify-lambda-execution-policy-Friendship

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Action": [
                "dynamodb:DescribeStream",
                "dynamodb:GetRecords",
                "dynamodb:GetShardIterator",
                "dynamodb:ListStreams"
            ],
            "Resource": "arn:aws:dynamodb:us-west-2:213277979580:table/Friendship-rmzuppsajfhzlfgjehczargowa-apisecure/stream/2020-12-11T07:48:02.535",
            "Effect": "Allow"
        }
    ]
}

4. lambda-execution-policy

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Action": [
                "logs:CreateLogGroup",
                "logs:CreateLogStream",
                "logs:PutLogEvents"
            ],
            "Resource": "arn:aws:logs:us-west-2:213277979580:log-group:/aws/lambda/connectFriendRequests-apisecure:log-stream:*",
            "Effect": "Allow"
        }
    ]
}

edit 2: I've attempted to remove the function and remake it again with identical permissions, but I'm still getting the 401 error.