I am getting the following error when trying to do a backup after just installing this plugin:
Result code: 1
Warning 0 => mysqldump: Can't create/write to file '/var/www/html/YYYYYYYY/rad/backups/db_zencart-20090629065533.sql' (Errcode: 2)
Error Failure: The database has NOT been saved.
The problem seems to be with the "new" name of my admin folder. I renamed this as suggested for security reasons. The name you see in the error (rad) is not the complete name. The next character is a dollar sign. So, it's probably a parsing error, I would guess.
I renamed the directory and it worked fine with one new error. Perhaps you can help with this. It seemed to be trying to email the backup and the email address was not valid. I can't figure out where that address is coming from.