What am I doing wrong with Sequelize?

Question

I'm trying to use Sequelize for my simple Typescript application. I simply want to connect to Postgres db via Sequelize (I can) and create a simple table Book (I can't) I've the file interface.ts within which I've the interface book:

export interface book{
    title: string;
    author: string;
    price: number;
    id: number;
}

Then I've the database.ts file:

import { Dialect, Sequelize } from 'sequelize'
import {book, purchases, user} from "../interface"
import { DataTypes, Model, Optional } from 'sequelize'

const dbName = process.env.DB_NAME as string
const dbUser = process.env.DB_USER as string
const dbHost = process.env.DB_HOST
const dbDriver = process.env.DB_DRIVER as Dialect
const dbPassword = process.env.DB_PASSWORD

export const sequelizeConnection = new Sequelize(dbName, dbUser, dbPassword, {
  host: dbHost,
  dialect: "postgres"
});

class Book extends Model<book> {
  id!: number;
  author!: string;
  price!: number;
  title!: string;
}

export function dbInit (){
  Book.sync({force: true});
}

In the main file, index.ts:

async function Start() {
  try {
    await sequelizeConnection.sync();
    dbInit();
    app.listen(configuration.server_port, (): void => {
      console.log("Server listening on port " + configuration.server_port);
    });
  } catch (error) {
    console.log("Error occured: " + error);
  }
}

Start();

The error I obtain is:

Executing (default): SELECT 1+1 AS result
Server listening on port 3000
(node:577) UnhandledPromiseRejectionWarning: TypeError: Cannot read property 'hooks' of undefined
    at getHooks (/mnt/c/Users/raffa/Desktop/esercitazione_ts/node_modules/sequelize/src/hooks.js:70:26)
    at Function.runHooks (/mnt/c/Users/raffa/Desktop/esercitazione_ts/node_modules/sequelize/src/hooks.js:98:15)
    at Function.sync (/mnt/c/Users/raffa/Desktop/esercitazione_ts/node_modules/sequelize/src/model.js:1339:18)
    at dbInit (/mnt/c/Users/raffa/Desktop/esercitazione_ts/src/config/dabatase.ts:25:8)
    at /mnt/c/Users/raffa/Desktop/esercitazione_ts/src/index.ts:18:11
    at step (/mnt/c/Users/raffa/Desktop/esercitazione_ts/src/index.ts:56:23)       
    at Object.next (/mnt/c/Users/raffa/Desktop/esercitazione_ts/src/index.ts:37:53)    at fulfilled (/mnt/c/Users/raffa/Desktop/esercitazione_ts/src/index.ts:28:58)  
    at processTicksAndRejections (internal/process/task_queues.js:95:5)
(Use `node --trace-warnings ...` to show where the warning was created)
(node:577) 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: 2)
(node:577) [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.

What am I doing wrong?