Fatal error: Uncaught Error: Class "Laminas\Feed\PubSubHubbub\Model\AbstractModel" not found in C:\Apache24\htdocs\cms_upgrade\vendor\laminas\laminas-feed\src\PubSubHubbub\Model\Subscription.php:13
Stack trace:
#0 {main}
thrown in C:\Apache24\htdocs\cms_upgrade\vendor\laminas\laminas-feed\src\PubSubHubbub\Model\Subscription.php on line 13