How to install a Laravel site on InfinityFree

For you to be able to test out what I’m struggling with, here’s the System Admin Account credentials: Email: sysadmin@biocarelifesciences.com Password: 12345 (this is a test version of the site, this pwd will be changed later) Then, using the sidebar, navigate to Requests → Cash Advance. On the top data table result, scroll right to the Action column, and click “View Details”. The Details Page show a Cash Advance Items table with an Attachments column, containing modal trigger buttons for the files. Click the modal to access the Download buttons (and the Download All button) for the attachments of that item. Whenever I try to download one (or all) of the attachment files, I get a server-level error 500.