Fatal Error on SEO Dashboard

Fatal error: Cannot redeclare wpseo_import_robots_meta_notice() (previously declared in /home/xxxxxxx/public_html/wp-content/plugins/wordpress-seo/inc/wpseo-non-ajax-functions.php:469) in /home/xxxxxxx/public_html/wp-content/plugins/wordpress-seo/admin/pages/dashboard.php on line 265

I received this error when navigating to the SEO >> Dashboard

I have rolled back to 1.5.1

Site is on linux hosting, theme is Pagelines, active plugins as below
WordPress version is 3.8.1
Apache/2.2.10 (Unix)
PHP/5.2.8

Ok. Just in pulling these details I see that PHP is version 5.2 >.< I’ll ping the host and see if they can upgrade that, it might solve some of our other issues too… but if the rest of the info helps and you have any thing to add, that might be nice.

Advanced Custom Fields
Version 4.3.4

Collapse-O-Matic
Version 1.5.7

Custom Post Type UI
Version 0.8.2

Google Analytics for WordPress
Version 4.3.5

Gravity Forms
Version 1.8.5

Jetpack by WordPress.com
Version 2.9.1

Pagelines Breadcrumbs
Version 1.00

Simple 301 Redirects
Version 1.06

Spam Destroyer
Version 1.3.2

Ultimate TinyMCE
Version 5.2

WordPress SEO
Version 1.5.1

WP Robots Txt
Version 1.1

https://wordpress.org/plugins/wordpress-seo/