WP2DB Backup aborted, expecting a file upload

I am using WordPress 3.3.2, PHP 5.3.1, MySQL 5.5.15 and theme Twenty Ten. I just activated the WP2DB plugin and my first attempted backup gave me these errors in the log. My first concern is that the website is using the theme Twenty Ten, not Twenty Twelve as listed on the errors. Why is WP2DB attempting to upload Twenty Twelve files? And why am I getting the “Expecting a file upload” message and the abort?

04:01:25: A fatal error occured: The backup is having trouble uploading files to Dropbox, it has failed 10 times and is aborting the backup.
04:01:25: Error uploading ‘/home/users/mysite/public_html/wp-content/themes/twentytwelve/inc/custom-header.php’ to Dropbox: Expecting a file upload
04:01:22: Approximately 1% complete.
04:01:22: Error uploading ‘/home/users/mysite/public_html/wp-content/themes/twentytwelve/content-image.php’ to Dropbox: Expecting a file upload
04:01:20: Error uploading ‘/home/users/mysite/public_html/wp-content/themes/twentytwelve/editor-style.css’ to Dropbox: Expecting a file upload
04:01:19: Error uploading ‘/home/users/mysite/public_html/wp-content/themes/twentytwelve/author.php’ to Dropbox: Expecting a file upload
04:01:16: Error uploading ‘/home/users/mysite/public_html/wp-content/themes/twentytwelve/page-templates/front-page.php’ to Dropbox: Expecting a file upload
04:01:15: Approximately 0% complete.
04:01:15: Error uploading ‘/home/users/mysite/public_html/wp-content/themes/twentytwelve/page-templates/full-width.php’ to Dropbox: Expecting a file upload
04:01:12: Error uploading ‘/home/users/mysite/public_html/wp-content/themes/twentytwelve/page.php’ to Dropbox: Expecting a file upload
04:01:11: Error uploading ‘/home/users/mysite/public_html/wp-content/themes/twentytwelve/content-none.php’ to Dropbox: Expecting a file upload
04:01:09: Approximately 0% complete.
04:01:09: Error uploading ‘/home/users/mysite/public_html/wp-content/themes/twentytwelve/archive.php’ to Dropbox: Expecting a file upload
04:01:07: Error uploading ‘/home/users/mysite/public_html/wp-content/themes/twentytwelve/languages/twentytwelve.pot’ to Dropbox: Expecting a file upload
04:01:05: Error uploading ‘/home/users/mysite/public_html/wp-content/themes/twentytwelve/sidebar.php’ to Dropbox: Expecting a file upload
04:01:02: Creating SQL backup of your WordPress plugins.
04:00:57: Creating SQL backup of your WordPress core.
04:00:13: Your time limit is 30 seconds and your memory limit is 32M

http://ww.wp.xz.cn/extend/plugins/wordpress-backup-to-dropbox/