unable to use link when it says "click here"

Hi PJ, 

Welcome to Box Community! 

If you've received a Shared Link to preview contents from Box and it's not working. Kindly reach out to the sender of the Shared Link and verify if the access permission was correctly modified. 

To know if you have permission to preview through Shared Links: 

• People with the link:  Anyone with the link can access the item and no Box account is required. For extra security, you can also set a password or expiration for the link, as well as restrict download and/or preview access for link viewers.
  
  • Password-protected shared links are available to all paid Box User accounts.  All passwords for open shared links require at least eight characters, and should contain at least one uppercase letter, number, or special character.
• People in your company:  Only people who: 1) are managed on a Box account (Starter and above); (2) have an email address that matches a domain registered with Box for the account that created the link, can access the link. For example, if acme.com is a registered domain on your account, all managed account members with an email address ending in acme.com can access this type of link. People who do not match a domain listed on your account cannot access the link, even if they are managed members on your account.
  • When accessing the link, collaborators must log in to Box to verify their identities. People in your company is disabled if you do not have a valid business domain registered with Box.
  • Collaborators in the folder can also access content if People in your company is selected.
• Invited people only: Only people invited to the folder or file can access the content. Collaborators already have access to their content, but can easily direct one another to a specific file or folder using the shared link.

You may head over to this link, Creating Shared Links as your reference. 

Let us know if you have additional questions,