I'm pretty new to wordpress.org and today I was upgrading to wordpress 3.5 and it failed. The site still seems to be live, but when I try and access the dashboard I get the following error message:
Fatal error: Call to undefined function get_home_path() in /var/sites/a/ayshcreament.co.uk/public_html/wp-admin/includes/misc.php on line 128
How do I fix this? It's a business site, so I need it running.
(I back up using a plugin)