Undefined index: Submit-DBB-Reset

Hello, upon activating the plugin I receive this error:

[07-Mar-2016 09:01:00 UTC] PHP Notice:  Undefined index: Submit-DBB-Reset in \wp-content\plugins\bulletproof-security\admin\includes\admin.php on line 405

[07-Mar-2016 09:01:00 UTC] PHP Stack trace:

[07-Mar-2016 09:01:00 UTC] PHP   1. {main}() \wp-admin\plugins.php:0

[07-Mar-2016 09:01:00 UTC] PHP   2. require_once() \wp-admin\plugins.php:10

[07-Mar-2016 09:01:00 UTC] PHP   3. do_action() \wp-admin\admin.php:168

[07-Mar-2016 09:01:00 UTC] PHP   4. call_user_func_array:{\wp-includes\plugin.php:525}() \wp-includes\plugin.php:525

[07-Mar-2016 09:01:00 UTC] PHP   5. bulletproof_security_admin_init() \wp-includes\plugin.php:525

[07-Mar-2016 09:01:00 UTC] PHP   6. bpsPro_create_db_backup_folder() \wp-content\plugins\bulletproof-security\admin\includes\admin.php:150

This happened to me once, however I have had trouble reproducing the error suggesting that perhaps it’s only a problem on a clean install.

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