Fatal error: Uncaught Error: Call to undefined method VP_Metabox

I am having the following error when I try to edit any of my pages. I have tried disabling all plugins in the staging website and the problem persists. So this appears to be a theme error

Fatal error: Uncaught Error: Call to undefined method VP_Metabox::is_parent_multi()
in /home2/growdoct/public_html/wp-content/themes/HighendWP/options-framework/classes/metabox.php on line 364

Call stack:

VP_Metabox::_enfactor_field()
wp-content/themes/HighendWP/options-framework/classes/metabox.php:181
VP_Metabox::_enfactor()
wp-content/themes/HighendWP/options-framework/classes/metabox.php:118
VP_Metabox::_setup()
wp-admin/includes/template.php:1345
do_meta_boxes()
wp-admin/edit-form-advanced.php:670
require()
wp-admin/post.php:206