uninstall W3 total cache plugin
- Delete W3 total Cache plugin from Wp-content/plugins folder
- Remove this line from Wp-config file (define(‘WP_CACHE’, true) )
- Delete advanced-cache.php, db.php, wp-total-cache-config.php and delete entire w3tc folder from wp-content folder.
- Check .htaccess file and if you see any code added by w3 total cache plugin, do remove it.