I have taken over a wordpress website which has been using Atahualpa Version 3.2 and I would like to upgrade to 3.7.3. I tried doing a manual install and got this message upon activation:
Fatal error: Call to undefined function home_url() in /home/blueribbonprop/blueribbondurango.com/wp-content/themes/atahualpa.3.7.3/atahualpa/functions/bfa_theme_options.php on line 7
I reverted back to the old version, but would like to know what steps to take to fix this problem. I have applied all of the patches to the new version and it should be ready to use.