I've updated my site http://www.velo-classique.com/ to the newest version of WP. The theme and all the plugins are updated but I get the following errors:
- Cookie error when login.
- When I save, for example, Writting options in WP Dashboard it redirects to a blank page.
- The velo-classique.com don't redirect to www.velo-classique.com.
I've checked the database, the wp-config.php and many thing that I've read on the Internet and troubleshooting section of WordPress and nothing works.
What can it be?