After owner change i create some folders (take a look at the list) and alos replaced manually a few files with the new ones from latest version.
Also, I had to change a few settings in .htaccess file suggested in w3 setup process that couldn´t be done automatically due to files permissions too.
Al little tedious but no big deal really. I hope this helps.
Database caching will not function properly: /home/cambiopo/public_html/wp-content/db.php is not latest version.
Object caching will not function properly: /home/cambiopo/public_html/wp-content/object-cache.php is not latest version.
Page caching will not function properly: /home/cambiopo/public_html/wp-content/advanced-cache.php is not latest version.
Either the /home/cambiopo/public_html/wp-content directory is not write-able or another caching plugin is installed.This error message will automatically disappear once the change is successfully made.