databaseerror 5bsequelizedatabaseerror 5d 3a relation does not exist

1const User = sequelize.define('user', {
2  firstName: {
3    type: Sequelize.STRING
4  },
5  lastName: {
6    type: Sequelize.STRING
7  }
8}, {
9    // disable the modification of table names; By default, sequelize will automatically
10    // transform all passed model names (first parameter of define) into plural.
11    // if you don't want that, set the following
12    freezeTableName: true,
13  });
14