How to remove the W3 Total Cache plugin manually.
First, delete all cache and deactivate the W3 Total Cache plugin.
Delete the W3 Total Cache plugin from the 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 the entire w3tc folder from the Wp-content folder.
Check the .htaccess file; if you see any code added by W3 Total Cache, remove it.
https://www.shoutmeloud.com/how-to-delete-uninstall-w3-total-cache-wordpress-plugin.html
