Fatal error: Uncaught Error: Interface "Fabiang\Xmpp\Protocol\ImplementationInterface" not found in /home/halabaj/nazwa.pl/htdocs/test.halaba.com.pl/xmp/vendor/fabiang/xmpp/src/Protocol/DefaultImplementation.php:58 Stack trace: #0 {main} thrown in /home/halabaj/nazwa.pl/htdocs/test.halaba.com.pl/xmp/vendor/fabiang/xmpp/src/Protocol/DefaultImplementation.php on line 58