site slow

Hi,
My website is loading slow and real slow when trying to work in the back end...The server tech looked at it and said he saw this causing the problem:

Fatal error: Uncaught TypeError: Argument 1 passed to Genesis_Admin_CPT_Archive_Settings::__construct() must be an instance of stdClass, instance of WP_Post_Type given, called in /home/nilmack/public_html/wp-content/themes/genesis/lib/admin/menu.php on line 122 and defined in /home/nilmack/public_html/wp-content/themes/genesis/lib/admin/cpt-archive-settings.php:38 Stack trace: #0 /home/nilmack/public_html/wp-content/themes/genesis/lib/admin/menu.php(122): Genesis_Admin_CPT_Archive_Settings->__construct(Object(WP_Post_Type)) #1 /home/nilmack/public_html/wp-includes/class-wp-hook.php(286): genesis_add_cpt_archive_page('') #2 /home/nilmack/public_html/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters('', Array) #3 /home/nilmack/public_html/wp-includes/plugin.php(453): WP_Hook->do_action(Array) #4 /home/nilmack/public_html/wp-admin/includes/menu.php(149): do_action('admin_menu', '') #5 /home/nilmack/public_html/wp-admin/menu.php(294): require_once('/home/nilmack/p...') #6 /home/nilmack/public_html/wp-admin/admin.php( in /home/nilmack/public_html/wp-content/themes/genesis/lib/admin/cpt-archive-settings.php on line 38

That looks like /genesis theme, is that connected with generatepress in any way?

Thanks