Fatal error: Uncaught Error: Undefined constant "WPVIVID_PLUGIN_DIR" in C:\xampp\htdocs\wordpress\wp-content\pluginsBK\wpvivid-backuprestore\includes\class-wpvivid-restore-db-method.php:3 Stack trace: #0 {main} thrown in C:\xampp\htdocs\wordpress\wp-content\pluginsBK\wpvivid-backuprestore\includes\class-wpvivid-restore-db-method.php on line 3