Nur Muhammad

I mean the version that you use on your phone.

Here is the way to check it 1. Go to **Settings** 2. Linked Devices 3. See on **Multi-Device Beta** status (joined or not) 

It mean that the `req.body.number` is not available, if you send the request with Postman, make sure to use body `form-data` or `x-www-form-urlencoded` or `json`. Actually it is was mentioned...

I already make an update, so the people not confusing with that if not following the tutorial. You can check this changes https://github.com/ngekoding/whatsapp-api-tutorial/commit/349196744fa2a27ff37d3267754619b0ee1719e0

Have you make sure that the client is ready?

Can you give a reproduced steps or attaching a video to tell the errors?

Kebetulan saya belum pernah mengalami masalah itu, akan tetapi dicoba perhatikan beberapa hal berikut. - Gunakan Node.js versi 14 - Gunakan whatsapp-web.js versi terbaru +++ @palenas kenapa perlu restart PC?...

Sudah coba cek di console?

@ubinbengkel coba jalankan `npm update whatsapp-web.js`

@malikmub With the new release of whatsapp-web.js it is no longer supported to use session option. Please watch my latest video for the solution.