[2021-05-28 23:02:30:474] [WARNING ] [      pool-18-thread-1 ] CIDConnections.sendPacketsBack() : Packet: from=null, to=null, DATA=<presence from="…@jabber.today" to="…@jabb3r.de" type="error"><error code="503" type="cancel"><service-unavailable xmlns="urn:ietf:params:xml:ns:xmpp-stanzas"/><text xmlns="urn:ietf:params:xml:ns:xmpp-stanzas" xml:lang="en">Offline messages queue is full</text></error></presence>, SIZE=307, XMLNS=jabber:client, PRIORITY=NORMAL, PERMISSION=NONE, TYPE=error, STABLE_ID=null processing exception: tigase.xmpp.PacketInvalidTypeException: The packet has already 'error' type: from=null, to=null, DATA=<presence from="doodlesticky@jabber.today" to="opiateconnect9999@jabb3r.de" type="error"><error code="503" type="cancel"><service-unavailable xmlns="urn:ietf:params:xml:ns:xmpp-stanzas"/><text xmlns="urn:ietf:params:xml:ns:xmpp-stanzas" xml:lang="en">Offline messages queue is full</text></error></presence>, SIZE=307, XMLNS=jabber:client, PRIORITY=NORMAL, PERMISSION=NONE, TYPE=error, STABLE_ID=null