I installed this plugin for a while and found that the server CPU and memory consumption shot up all of a sudden, eventually bringing down the website. I had to manually delete the plugin folder via FTP.
But now, I keep getting errors like below each time I activate a new plugin and my apache error log is filled with such errors.
[Wed May 30 10:08:43 2012] [error] [client xx.xxx.xxx.xx] PHP Warning: filetype() [function.filetype]: Lstat failed for /home/xxxxx/wp-content/themes/xxxx/header.php in /home/xxxx/wp-content/plugins/better-wp-security/inc/filecheck.php on line 462
Please let me know how to manually clear everything associated with this plugin (like database tables etc).