I have done exactly what I indicated twice, but the result is always the same when I activate Sydney toolbox plugin:
Fatal error : Cannot redeclare sydney_set_after_import_mods() (previously declared in /home/o3outdoo/public_html/soluzionidigitali.online/wp-content/plugins/sydney-toolbox/demo-content/setup.php:35) in /home/o3outdoo/public_html/soluzionidigitali.online/wp-content/themes/sydney-pro-ii/demo-content/setup.php on line 36
The correct loading of one or more themes has failed.
You can find more details and make changes from the themes screen.
Error: This theme did not load correctly and was suspended within the administration backend.
If I disable the plugin I still have the problem of a busted site and the Home Page that does not load the contents, but that remains white with the two balls of the fixed upload.
The home page problem appeared before the sydney toolbox update, as indicated in my post, but the sitegorund technicians indicated the problem in a plug in …
You can read it in detail here: Urgent: Wordpress Say: Sydney pro crushed the site