Backup .htaccess failed

Hey,

I’ve had a few problems with my wordpress site being hacked and files created etc. I’ve now installed your plugin to try and stop that happening however I selected backup .htaccess file and I get an error saying it failed.

Is there a certain folder that needs certain permissions being set etc or am I missing something?

https://wordpress.org/plugins/all-in-one-wp-security-and-firewall/