Error upon Zemanta plugin activation

My Zemanta plugin was working fine. I upgraded my hosting to godaddy 4g and I now get the following error when the plugin is activated:

Warning: session_start() [function.session-start]: open(/var/chroot/home/content/16/4143816/tmp/sess_95a51879187e17d7358ac44841995468, O_RDWR) failed: No such file or directory (2) in /home/content/16/4143816/html/wordpress/wp-content/plugins/zemanta/zemanta.php on line 565

Warning: session_start() [function.session-start]: Cannot send session cache limiter – headers already sent (output started at /home/content/16/4143816/html/wordpress/wp-content/plugins/zemanta/zemanta.php:565) in /home/content/16/4143816/html/wordpress/wp-content/plugins/zemanta/zemanta.php on line 565

Any Suggestions?

Thanks

https://www.ads-software.com/extend/plugins/zemanta/