Hi!
First try downloading the
Joomla! 1.7.0 package, extract it locally and upload all files and directories except the "installation" directory to your site.
If this doesn't help, you will have to additionally follow
Joomla!'s official manual update instructions which sums up to removing some unused files and running three SQL commands.
If that still doesn't help, one of your plugins, modules, templates or components used on your site's front-end is not compatible with Joomla! 1.7. For instance, if you have a RocketTheme template you
must upgrade to the latest release of the Gantry framework or your template might not even work on Joomla! 1.7. Other popular extensions, like Community Builder, had similar issues with Joomla! 1.7 and fixed them in their latest releases. If you are not sure about the compatibility status of your extensions with Joomla! 1.7, please ask their respective authors. Note: All the latest releases of AkeebaBackup.com software have been tested and working with the latest releases of Joomla! 1.5, 1.6 and 1.7.
Nicholas K. Dionysopoulos
Lead Developer and Director
🇬🇷Greek: native 🇬🇧English: excellent 🇫🇷French: basic • 🕐 My time zone is Europe / Athens
Please keep in mind my timezone and cultural differences when reading my replies. Thank you!