Have you tried:
– deactivating all plugins to see if this resolves the problem. If this works, re-activate the plugins one by one until you find the problematic plugin(s).
– switching to the default theme to rule out any theme-specific problems.
– resetting the plugins folder by FTP or PhpMyAdmin. Sometimes, an apparently inactive plugin can still cause problems.
– re-uploading all files & folders – except the wp-content folder and wp-config.php & root .htaccess files – from a fresh download of WordPress. Make sure that you delete the old copies of files & folder before uploading the new ones.
Hi esmi!
Thanks a lot!
I’ve just tried to deactivate all plugins and the problematic plugin was “SEO WordPress by Yoast”…
I think this plugin is a must, isn’t? Do you know if there’s any way to solve the problem and keep the plugin?
Thanks again!
Solved! It was an option of the SEO Yoast plugin. I’m sorry, because the answer was here: http://wordpress.org/support/topic/plugin-wordpress-seo-by-yoast-archive-widget-not-working Thanks again!