Can't open uploaded files

Hi, thanks for this plugin. I’ve been having a few problems. The links in the emails didn’t work and nothing was uploaded to the server. I fixed this by commenting out the following in destination.php:

if( empty( $_SERVER[‘HTTP_REFERER’] ) || false === get_transient( ‘feu_referer_’ . md5( $_SERVER[‘HTTP_REFERER’] . $hash . $salt ) ) )
die();

However now the uploaded files have very odd names (FEU44dd8e7629f6a5f20523caf19d9e8fd1519948359ab5c) and I can’t seem to open them. I’ve tried renaming them but this didn’t work either.

Any ideas how to fix this please?

Thanks
Tash

https://www.ads-software.com/extend/plugins/front-end-upload/