Backup in new version 3.x Fail

Backups in the new version fail (they were working great in the older version 2.x). Please see log below (xxxx is used for security as this is a public support area):

[INFO] BackWPup version 3.0.3; WordPress version 3.5.1; A project of Inpsyde GmbH developed by Daniel Hüsken
[INFO] This program comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to redistribute it under certain conditions.
[INFO] BackWPup job: xxxx.xxx; DBDUMP+FILE+WPEXP+WPPLUGIN
[INFO] BackWPup cron: 0 5 * * *; Sun, 3 Mar 2013 @ 05:00
[INFO] BackWPup job started manually
[INFO] PHP ver.: 5.3.21; cgi-fcgi; Linux
[INFO] Maximum script execution time is 30 seconds
[INFO] MySQL ver.: 5.1.41
[INFO] curl ver.: 7.24.0; OpenSSL/0.9.8k
[INFO] Temp folder is: /home/xxxx/public_html/wp-content/uploads/backwpup-b90a7-temp/
[INFO] Logfile folder is: /home/xxxx/public_html/wp-content/backwpup-b90a7-logs/
[INFO] Backup type is: archive
[INFO] Backup file is: /home/xxxx/public_html/wp-content/uploads/backwpup-b90a7-temp/backwpup_e287ee_2013-03-02_10-10-48.tar.gz
[02-Mar-2013 10:10:48] 1. Try for database dump …
[02-Mar-2013 10:10:48] Connected to database xxxx_wp on localhost
[02-Mar-2013 10:10:48] Dump database table "xx_3wp_activity_monitor_index"
[02-Mar-2013 10:10:49] Dump database table "xx_3wp_activity_monitor_user_statistics"
[02-Mar-2013 10:10:49] Dump database table "xx_commentmeta"
[02-Mar-2013 10:10:49] Dump database table "xx_comments"
[02-Mar-2013 10:10:49] Dump database table "xx_links"
[02-Mar-2013 10:10:49] Dump database table "xx_options"
[02-Mar-2013 10:10:49] Dump database table "xx_postmeta"
[02-Mar-2013 10:10:49] Dump database table "xx_posts"
[02-Mar-2013 10:10:49] Dump database table "xx_term_relationships"
[02-Mar-2013 10:10:49] Dump database table "xx_term_taxonomy"
[02-Mar-2013 10:10:49] Dump database table "xx_terms"
[02-Mar-2013 10:10:49] Dump database table "xx_usermeta"
[02-Mar-2013 10:10:49] Dump database table "xx_users"
[02-Mar-2013 10:10:49] Added database dump "xxxx_wp.sql" with 2.83 MB to backup file list
[02-Mar-2013 10:10:49] Database dump done!
[02-Mar-2013 10:10:50] 1. Trying to make a list of folders to back up …
[02-Mar-2013 10:10:51] 458 folders to back up.
[02-Mar-2013 10:10:52] 1. Trying to make a WordPress export to XML file …
[02-Mar-2013 10:10:53] Added XML export "xxxx.wordpress.2013-03-02.xml" with 137.57 kB to backup file list.
[02-Mar-2013 10:10:53] 1. Trying to generate a file with installed Plugin names …
[02-Mar-2013 10:10:53] Added plugin list file "xxx.pluginlist.2013-03-02.txt" with 5.42 kB to backup file list.
[02-Mar-2013 09:10:54 America/Chicago] PHP Strict Standards:  Only variables should be assigned by reference in /home/xxxx/public_html/wp-content/plugins/wp-super-cache/wp-cache-phase2.php on line 314
[02-Mar-2013 10:10:55] 1. Trying to create backup archive …
[02-Mar-2013 10:10:55] Compression method is TarGz
[02-Mar-2013 10:16:54] Job restart due to inactivity for more than 5 minutes.
[02-Mar-2013 10:16:54] 2. Trying to create backup archive …
[02-Mar-2013 10:16:54] Compression method is TarGz
[02-Mar-2013 10:23:01] Job restart due to inactivity for more than 5 minutes.
[02-Mar-2013 10:23:01] 3. Trying to create backup archive …
[02-Mar-2013 10:23:01] Compression method is TarGz
[02-Mar-2013 10:23:07] Backup archive created.
[02-Mar-2013 10:23:07] Archive size is 54.10 MB.
[02-Mar-2013 10:23:07] 7499 Files with 98.09 MB in Archive.
[02-Mar-2013 10:23:09] 1. Try to send backup file to Dropbox …
[02-Mar-2013 10:23:09] Authenticated with Dropbox from xxxx xxxx (xxxx@xxxx.com)
[02-Mar-2013 10:23:09] 209.81 GB free on Dropbox
[02-Mar-2013 10:23:09] Upload to Dropbox now started …
[02-Mar-2013 10:29:05] Job restart due to inactivity for more than 5 minutes.
[02-Mar-2013 10:29:05] 2. Try to send backup file to Dropbox …
[02-Mar-2013 10:29:06] Authenticated with Dropbox from xxxx xxxx (xxxx@xxxx.com)
[02-Mar-2013 10:29:06] 209.81 GB free on Dropbox
[02-Mar-2013 10:29:06] Upload to Dropbox now started …
[02-Mar-2013 10:35:09] Job restart due to inactivity for more than 5 minutes.
[02-Mar-2013 10:35:09] 3. Try to send backup file to Dropbox …
[02-Mar-2013 10:35:10] Authenticated with Dropbox from xxxx xxxx (xxxx@xxxx.com)
[02-Mar-2013 10:35:10] 209.81 GB free on Dropbox
[02-Mar-2013 10:35:10] Upload to Dropbox now started …

http://wordpress.org/extend/plugins/backwpup/