Error after last update

I have this error message showing up in my dashboard:

Warning: file_put_contents(/home/*******/public_html/.htaccess) [function.file-put-contents]: failed to open stream: Permission denied in /home/*******/public_html/wp-content/plugins/bulletproof-security/includes/functions.php on line 2178

Any ideas how to remove it or fix it?

https://ww.wp.xz.cn/plugins/bulletproof-security/