Learning MVC, I'm trying to seed my database with dummy entries and I keep getting this error:

(node:19287) UnhandledPromiseRejectionWarning: Error
at Query.run (/Users/joshuaramat/Documents/projects/tech-blog/node_modules/sequelize/lib/dialects/mysql/query.js:52:25)
at /Users/joshuaramat/Documents/projects/tech-blog/node_modules/sequelize/lib/sequelize.js:313:28
at processTicksAndRejections (internal/process/task_queues.js:95:5)
at async MySQLQueryInterface.bulkInsert (/Users/joshuaramat/Documents/projects/tech-blog/node_modules/sequelize/lib/dialects/abstract/query-interface.js:335:21)
at async recursiveBulkCreate (/Users/joshuaramat/Documents/projects/tech-blog/node_modules/sequelize/lib/model.js:1655:25)
at async Function.bulkCreate (/Users/joshuaramat/Documents/projects/tech-blog/node_modules/sequelize/lib/model.js:1744:12)
at async seedAll (/Users/joshuaramat/Documents/projects/tech-blog/seeds/index.js:14:3)
(Use `node --trace-warnings ...` to show where the warning was created)
(node:19287) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
(node:19287) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

the following is the code used to seed my data:

const seedUsers = require('./user-seeds');
const seedPosts = require('./post-seeds');
const seedComments = require('./comment-seeds');
const seedVotes = require('./vote-seeds');

const sequelize = require('../config/connection');

const seedAll = async () => {
  await sequelize.sync({ force: true });
  console.log('SEQUELIZE--------------');
  await seedUsers();
  console.log('USERS--------------');

  await seedPosts();
  console.log('POSTS--------------');

  await seedComments();
  console.log('COMMENTS--------------');

  await seedVotes();
  console.log('VOTES--------------');

  process.exit(0);
};

seedAll();

The error seems to occur after the seedPosts() function is called. Would anyone be able to help?