Hi Paolo
same problem code for me too.
I updated an install I did few days ago, worked perfect until I updated this eve. Then I installed all new plugin updates and theme framework on a new domain, and bang, same error message on homepage too, without doing any work on any settings.
Warning: Creating default object from empty value in /home/yellodir/public_html/wp-content/plugins/geodirectory/geodirectory_hooks_actions.php on line 1158
Message ONLY appears on home page, above header. All other pages are normal showing
Please advise
Holger