PHP Warnings

When viewing the tester page under tools in WP Admin, a number of PHP warnings and notices crop up:

Notice: wp_enqueue_script was called incorrectly. Scripts and styles should not be registered or enqueued until the wp_enqueue_scripts, admin_enqueue_scripts, or login_enqueue_scripts hooks. Please see Debugging in WordPress for more information. (This message was added in version 3.3.0.) in /srv/www/wordpress-default/public_html/wp-includes/functions.php on line 4204

Notice: wp_enqueue_script was called incorrectly. Scripts and styles should not be registered or enqueued until the wp_enqueue_scripts, admin_enqueue_scripts, or login_enqueue_scripts hooks. Please see Debugging in WordPress for more information. (This message was added in version 3.3.0.) in /srv/www/wordpress-default/public_html/wp-includes/functions.php on line 4204

Notice: wp_enqueue_style was called incorrectly. Scripts and styles should not be registered or enqueued until the wp_enqueue_scripts, admin_enqueue_scripts, or login_enqueue_scripts hooks. Please see Debugging in WordPress for more information. (This message was added in version 3.3.0.) in /srv/www/wordpress-default/public_html/wp-includes/functions.php on line 4204

Notice: wp_enqueue_style was called incorrectly. Scripts and styles should not be registered or enqueued until the wp_enqueue_scripts, admin_enqueue_scripts, or login_enqueue_scripts hooks. Please see Debugging in WordPress for more information. (This message was added in version 3.3.0.) in /srv/www/wordpress-default/public_html/wp-includes/functions.php on line 4204

Notice: Undefined index: performTest in /srv/www/wordpress-default/public_html/wp-content/plugins/wpperformancetester/WPPerformanceTester_Plugin.php on line 15