Fatal error: Uncaught Error: Class 'WP_Widget' not found in /users/robiniffert95/www/gustavguns/wp-content/plugins/custom-twitter-feeds/inc/widget.php:8 Stack trace: #0 {main} thrown in /users/robiniffert95/www/gustavguns/wp-content/plugins/custom-twitter-feeds/inc/widget.php on line 8