Unable to backup .htaccess, config.php files change db prefix, permissions

When I attempt to do any of the backups to .htaccess, or wp-config, I get the following message (I changed my domain name/path to “xxmywebinfoxx” :

“Warning: copy(/xxmywebinfoxx/wp-config.php.backup): failed to open stream: Permission denied in /xxmywebinfoxx/wp-content/plugins/all-in-one-wp-security-and-firewall/classes/wp-security-utility-file.php on line 49 Warning: fopen(/xxmywebinfoxx/wp-content/plugins/all-in-one-wp-security-and-firewall/logs/wp-security-log.txt): failed to open stream: Permission denied in /xxmywebinfoxx/wp-content/plugins/all-in-one-wp-security-and-firewall/classes/wp-security-debug-logger.php on line 52 Warning: fwrite(): supplied argument is not a valid stream resource in /xxmywebinfoxx/wp-content/plugins/all-in-one-wp-security-and-firewall/classes/wp-security-debug-logger.php on line 53 Warning: fclose(): supplied argument is not a valid stream resource in /xxmywebinfoxx/wp-content/plugins/all-in-one-wp-security-and-firewall/classes/wp-security-debug-logger.php on line 54”

This is happening on a couple of wordpress installations, but not on the one I had the password protected problem with in my previous message (on password protected pages) I am a reseller, and the problem wordpress sites are all under one reseller account, while the one NOT having the problem is elsewhere. Is this something to do with file permissions, or perhaps something I need to discuss with my ISP?

Thanks!

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