How to enable sharing on your site.
- Log into the site as a administrator.
- Go to Settings > File Sharing.
- To enable Toggle on “Allow users to create public links”

- Enable user accounts to share. You can click the button at the top of the page to enable this for all users.

Or go to Users > Select a user > Edit Tab and enable it on a per user basis by enabling the toggle for “Allow user to create public links” and click Save.