I have tested again with Akeeba Backup Professional 3.9.1 on Joomla! 2.5.16 and 3.2.0, it works just fine. I can't see a reason why it wouldn't work on your site, even if you have an older version of Joomla!. At this point I would recommend installing Akeeba Backup Professional 3.9.1 twice in a row, without uninstalling it first, just to make sure that all files are written to the disk correctly. If this doesn't help the only things that could possibly go wrong:
- There could be a .htaccess file or a host firewall preventing access to our restoration script. Unlike Kickstart, the integrated restoration is using encrypted communications to prevent unauthorised use (Kickstart doesn't do that as it's only meant to be a short lived script, deleted right after the restoration of your site). The encrypted request data could be triggering a host firewall as they are something completely out of the ordinary. I have seen that in the past, it takes talking to your host and explaining the use case. For their information, the request is made against administrator/components/com_akeeba/restore.php on your site. This will help them search their logs.
Nicholas K. Dionysopoulos
Lead Developer and Director
🇬🇷Greek: native 🇬🇧English: excellent 🇫🇷French: basic • 🕐 My time zone is Europe / Athens
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