ejabberd version: 16.01-2 (Ubuntu 16.04)

When connecting with Gajim client everything works fine.

File: vendor/zorn-v/xmpp/src/Exception/XMLParserException.php:68

Message: XML parsing error: "Not well-formed (invalid token)" at Line 1 at column 1

Error log:
2018-09-04T16:54:28-03:00 DEBUG (7): Received buffer '' from 'tcp://localhost:5222'
2018-09-04T16:54:28-03:00 DEBUG (7): Sending data '
<stream:stream to="localhost" xmlns:stream="http://etherx.jabber.org/streams" xmlns="jabber:client" version="1.0">' to 'tcp://localhost:5223'
2018-09-04T16:54:28-03:00 DEBUG (7): Listener "Fabiang\Xmpp\EventListener\Stream\Stream" is currently blocking
2018-09-04T16:54:28-03:00 DEBUG (7): Received buffer '<LOT_OF_TRASH_CHARACTERS>' from 'tcp://localhost:5222'