Have you tried rebooting your server?

This sounds like your Homestead.yaml file is not configured correctly.

Ensure that your "sites" is configured like below:

sites:
    - map: yoursite.com
      to: /home/vagrant/Code/yoursite/public

"/home/vagrant/Code/yoursite/public" is the path to the public folder of your laravel installation on the Forge server.

If that isn't the problem then SSH into the server and make sure that your files are actually being pushed to the correct location. Forge usually does this automatically so long as you have "Enable Quick Deploy" set in the admin interface and are using Github/Bitbucket.