Auto-Upgrading Plugins Problem

When I try to use the automatic upgrading of plugins, I get the following error.

Any ideas of how to fix this?

Fatal error: Cannot redeclare pclziputilpathreduction() (previously declared in /home/steveell/public_html/wp-content/plugins/wordpress-automatic-upgrade/lib/pclzip.lib.php:5421) in /home/steveell/public_html/wp-admin/includes/class-pclzip.php on line 5489