Hi
I got this error while working behind a firewall/proxy
Warning: simplexml_load_file(): I/O warning : failed to load external entity "http://www.jdownloads.com/updates/4.0/final/jdownloads-update.xml" in /data/www/html/administrator/components/com_jdownloads/src/Helper/JDownloadsHelper.php on line 2454
Edited this file "JDownloadsHelper.php" to hardcode our proxy - better would be if you include the joomla proxy config in this file
Thanks.
Greetings,