You don't have permission to access /wp-admin/admin.php on this server.

Looking at source code, rights to upload are only given to admins roles…

$role = get_role('administrator');
	if(!$role->has_cap('manage_downloads')) {
		$role->add_cap('manage_downloads');
	}

Test if you can edit wp-downloadmanager.php ikf you only have editor role (or author, or however low you want to set it.).

//$role = get_role('administrator');
	$role = get_role('editor');
	if(!$role->has_cap('manage_downloads')) {
		$role->add_cap('manage_downloads');
	}

I am myself surprised that this seems to be hardcoded or does it expect another plugin managing capabilities?!

Ah…: https://forums.lesterchan.net/index.php?topic=1243.0

As I can work around this my code change of this “dead” piece of software, I mark it as solved (see second last comment of mine, where EDITOR becomes minimum role for upload)

Okay, not my thread. Shepstar, can you live with the solution?