Fatal error: Uncaught Error: Interface 'Depicter\Document\Migrations\DataMigration\MigrationInterface' not found in /var/www/courses.riftvalley.net/wordpress/wp-content/plugins/depicter/app/src/Document/Migrations/DataMigration/BackgroundImage.php:6 Stack trace: #0 {main} thrown in /var/www/courses.riftvalley.net/wordpress/wp-content/plugins/depicter/app/src/Document/Migrations/DataMigration/BackgroundImage.php on line 6