Fatal error: Uncaught Error: Class 'Fabiang\Xmpp\EventListener\AbstractEventListener' not found in /home/halabaj/nazwa.pl/htdocs/test.halaba.com.pl/xmp/vendor/fabiang/xmpp/src/EventListener/Logger.php:46 Stack trace: #0 {main} thrown in /home/halabaj/nazwa.pl/htdocs/test.halaba.com.pl/xmp/vendor/fabiang/xmpp/src/EventListener/Logger.php on line 46