[12-Oct-2021 13:25:29 UTC] PHP Fatal error:  Uncaught Error: Class 'Zend\Feed\PubSubHubbub\AbstractCallback' not found in /home/powergen/dark.menapack.net/concrete/vendor/zendframework/zend-feed/src/PubSubHubbub/Subscriber/Callback.php:16
Stack trace:
#0 {main}
  thrown in /home/powergen/dark.menapack.net/concrete/vendor/zendframework/zend-feed/src/PubSubHubbub/Subscriber/Callback.php on line 16
[15-Jul-2024 19:57:14 UTC] PHP Fatal error:  Uncaught Error: Class 'Zend\Feed\PubSubHubbub\AbstractCallback' not found in /home/multitecheg/s.multi-techeg.com/concrete/vendor/zendframework/zend-feed/src/PubSubHubbub/Subscriber/Callback.php:16
Stack trace:
#0 {main}
  thrown in /home/multitecheg/s.multi-techeg.com/concrete/vendor/zendframework/zend-feed/src/PubSubHubbub/Subscriber/Callback.php on line 16
