Fatal error: Uncaught Error: Class 'WP_Widget' not found in /opt/app-root/src/wp-content/plugins/jetpack/modules/widgets/class-jetpack-instagram-widget.php:14 Stack trace: #0 {main} thrown in /opt/app-root/src/wp-content/plugins/jetpack/modules/widgets/class-jetpack-instagram-widget.php on line 14