Folders are not synchronized in Vagrant box

Vagrant stopped synchronising my folders. maps folders like this:

folders:
- map: ~/my-folder
  to: /home/vagrant/my-folder

1. I listed all boxes and removed all existing ones.

2. I re-installed the one I need:

   vagrant init laravel/homestead

After the installation, when I :

Bringing machine 'default' up with 'virtualbox' provider...
==> default: Checking if box 'laravel/homestead' version '12.0.0' is up to date...
==> default: Machine already provisioned. Run `vagrant provision` or use the `--provision`
==> default: flag to force provisioning. Provisioners marked to run always will still run.

I also called but no luck. I can login:

vagrant ssh

But folders are not there. What am I missing?