Error Traceback[bosh]: /usr/lib/prosody/util/stanza.lua:62: invalid text value: expected string, got userdata

I’ve managed to setup JWT for use with external API. Authentication working fine I think…but unfortunately I end up encounter this problem :

Jun 17 19:26:26 mod_bosh error Traceback[bosh]: /usr/lib/prosody/util/stanza.lua:62: invalid text value: expected string, got userdata
stack traceback:
[C]: in function ‘error’
/usr/lib/prosody/util/stanza.lua:62: in function ‘check_text’
/usr/lib/prosody/util/stanza.lua:141: in function ‘add_direct_child’
/usr/lib/prosody/util/stanza.lua:120: in function ‘text’
/usr/share/jitsi-meet/prosody-plugins/util.lib.lua:133: in function ‘update_presence_identity’
…are/jitsi-meet/prosody-plugins/mod_presence_identity.lua:11: in function ‘?’
/usr/lib/prosody/util/events.lua:79: in function </usr/lib/prosody/util/events.lua:75>
(…tail calls…)
/usr/lib/prosody/core/stanza_router.lua:176: in function ‘core_post_stanza’
/usr/lib/prosody/core/stanza_router.lua:127: in function ‘dispatch_stanza’
/usr/lib/prosody/modules/mod_bosh.lua:305: in function ‘func’
/usr/lib/prosody/util/async.lua:127: in function </usr/lib/prosody/util/async.lua:125>
stack traceback:
/usr/lib/prosody/util/async.lua:211: in function ‘run’
/usr/lib/prosody/modules/mod_bosh.lua:447: in function ‘cb_handlestanza’
/usr/lib/prosody/util/xmppstream.lua:182: in function </usr/lib/prosody/util/xmppstream.lua:162>
[C]: in function ‘parse’
/usr/lib/prosody/util/xmppstream.lua:282: in function ‘feed’
/usr/lib/prosody/modules/mod_bosh.lua:133: in function ‘?’
/usr/lib/prosody/util/events.lua:79: in function </usr/lib/prosody/util/events.lua:75>
(…tail calls…)
/usr/lib/prosody/net/http/server.lua:228: in function </usr/lib/prosody/net/http/server.lua:176>
[C]: in function ‘xpcall’
/usr/lib/prosody/net/http/server.lua:108: in function ‘process_next’
/usr/lib/prosody/net/http/server.lua:124: in function ‘success_cb’
/usr/lib/prosody/net/http/parser.lua:177: in function ‘feed’
/usr/lib/prosody/net/http/server.lua:155: in function </usr/lib/prosody/net/http/server.lua:154>
(…tail calls…)
/usr/lib/prosody/net/server_select.lua:915: in function </usr/lib/prosody/net/server_select.lua:899>
[C]: in function ‘xpcall’
/usr/bin/prosody:76: in function ‘loop’
/usr/bin/prosody:86: in main chunk
[C]: in ?

The symptom for this issue is that I can authenticate and create the chat room, but however, other participant unable to join

my setup:
Ubuntu 18.04 TLS, Prosody 0.11.5-1~bionic6, jitsi-meet: 2.0.4627-1, jitsi-videobridge2:2.1-202-g5f9377b9-1

Hope to hear from someone who can assist and explain. TQ in advance

Hi @odeon

Are you fix this issue. I got the same error