At first, thank you for creating such a solid plugin that strives to have no compromise: I really appreciate using the results of your work.
I get the following error in trying the Database Backup:
"Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 1906825 bytes) in /var/www/user934/html/wp-content/plugins/all-in-one-wp-security-and-firewall/classes/wp-security-backup.php on line 56"
Some additional information: Same error with all plugins but not AIOWPS turned off. This is for the main user (admin) MU site: All other sites can do the DB Backup.
Is it really my host, not providing enough memory? PHPINFO shows 64M memory limit - should that be enough?
I had performed a DB prefix change before, but I guess this shouldn't be causing the trouble (?) WP 3.8.3 or 3.9, same error ...
Thank you sincerely for help or suggestions,