Fatal error: Uncaught Error: Interface 'WPStaging\Framework\Queue\QueueInterface' not found in /home/savsol/public_html/wp-content/plugins/wp-staging/Framework/Queue/Queue.php:16 Stack trace: #0 {main} thrown in /home/savsol/public_html/wp-content/plugins/wp-staging/Framework/Queue/Queue.php on line 16