Upgrade Stopped: Unable To Prepare Restore File


I am trying to upgrade from 4.3.3.SP1 to 4.3.4 on our Linux/Apache system but get the following error:

Upgrades directory permissions: drwxr-xr-x [user][group]

Restore script is not available via HTTP at "http://[server name here]/upgrades/core_4.3.3.SP1-4.3.4/restore_2016-01-24_11:15:56.php"

Upgrade stopped: unable to prepare restore file.

The file has been created and folder is accessible (I created a test file in this folder to make sure).

Can anyone suggest what is causing the error?

Kind regards


It is hard to answer on your question. If you provide us with the temporary FTP access, we can check the issue