Fatal error: Uncaught Error: Call to undefined function _e() in /opt/app-root/src/wp-content/plugins/simple-page-sidebars/admin/views/edit-sidebar-screen.php:3 Stack trace: #0 {main} thrown in /opt/app-root/src/wp-content/plugins/simple-page-sidebars/admin/views/edit-sidebar-screen.php on line 3