Fatal error: Uncaught Error: Class 'Laminas\Feed\Exception\InvalidArgumentException' not found in C:\SistemasPHP\observatorio4\vendor\laminas\laminas-feed\src\PubSubHubbub\Exception\InvalidArgumentException.php:7 Stack trace: #0 {main} thrown in C:\SistemasPHP\observatorio4\vendor\laminas\laminas-feed\src\PubSubHubbub\Exception\InvalidArgumentException.php on line 7