Fatal error: Uncaught Error: Call to undefined function _e() in /opt/app-root/src/wp-content/plugins/advanced-custom-fields/includes/admin/views/html-admin-page-upgrade-network.php:24 Stack trace: #0 {main} thrown in /opt/app-root/src/wp-content/plugins/advanced-custom-fields/includes/admin/views/html-admin-page-upgrade-network.php on line 24