Use FTP or hosting File Manager to delete the following Directories
/wp-content/w3tc
/wp-content/plugins/w3-total-cache
As well as the following FILES
/wp-content/advanced-cache.php
/wp-content/object-cache.php
/wp-content/w3-total-cache-config.php
/wp-content/db.php
If you can’t delete directories/folders you may have to ch_mod (change permissions) to 755 if something else is set
Check your .htaccess file for W3TC entries and delete them – these may vary.. Look for # BEGIN W3TC ….
and delete up to # END W3TC
WWhen you de-activated the plugin this section of .htaccess should have been removed automatically)
Backup your .htaccess first, just in case…
You should then be be able to install a fresh W3TC – post update if you have any problems, and the error message.
Thank you very much, your solution has nicely worked. Is there a guide/documentation available that tells about configuring W3TC with BuddyPress?