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

The problem is related to wordpress-automatic-upgrade plugin. You have to manually upgrade it to version 1.0 in order to have plugin upgrade functionality properly work. To download the updated version click here: http://wordpress.org/extend/plugins/wordpress-automatic-upgrade/