I am unable to edit pages using cornerstone because of this error:
Fatal error : Uncaught Error: Call to undefined function x_addons_get_link_home() in /home4/skimonar/public_html/wp-content/plugins/cornerstone/includes/classes/app/class-app.php:263 Stack trace: #0 /home4/skimonar/public_html/wp-content/plugins/cornerstone/includes/classes/app/class-app.php(177): Cornerstone_App->get_site_install_confirm_messages() #1 /home4/skimonar/public_html/wp-content/plugins/cornerstone/includes/classes/app/class-app.php(115): Cornerstone_App->get_app_data() #2 /home4/skimonar/public_html/wp-content/plugins/cornerstone/includes/classes/app/class-app.php(293): Cornerstone_App->register_app_scripts(Array) #3 /home4/skimonar/public_html/wp-content/plugins/cornerstone/includes/classes/app/class-app.php(52): Cornerstone_App->enqueue_scripts(Array) #4 /home4/skimonar/public_html/wp-includes/class-wp-hook.php(287): Cornerstone_App->load(’’) #5 /home4/skimonar/public_html/wp-includes/class-wp-hook.php(311): WP_Hook->apply_filters(’’, Array) #6 /home4/skimonar/public_html/wp-includes/plugin.php(484): WP_Hook in /home4/skimonar/public_html/wp-content/plugins/cornerstone/includes/classes/app/class-app.php on line 263