Forbidden - you don't have permission to access ...

In my current project of a music downloads site, I'm getting this error when I make a purchase and then do to download it.

Forbidden

You don't have permission to access /catalog/pub/.gmvxsceyqipobvqe/

I haven't run into this problem before when setting up virtual products. In my troubleshotting I have set the CHMOD on the /pub/ folder to 777 but it made no difference.

/.gmvxsceyqipobvqe/ is 550 and can't be changed.

try that:1. login as root
2. execute that command:
chmod 777 /catalog/pub -Ras root you can change the permissions for every folder, and the -R option with chmod sets the permission recursively (for all subdirectories & files in them)

rather than open that file,
how about, changing the setting about redirect in admin

Yes changing the redirect worked. Thanks.

How do you change (and where) the changing the setting about redirect in admin?

You don't have permission to access /xxx/xxxx//.oyzfrxrnnmvgkxnirt/xxxxxxxxxxx

I have a webpage with some products which are not downloadable and some other products which I am trying to make them downloadable (such as the catalogue itself in PDF format).
I have tried the attributes sectio, followed all the steaps, changed the CHMOD of the pub to 777 and I still get the same error.
Can anyone help me?