Jitsi-meet-token

Good afternoon, I have jitsi-meet-token running, so I can create a room with https://conference.example.com/salaprtest?jwt=id-token, but if I want a guest to enter the exit before creating https : //conference.example.com/salatest. It does not work I have the black screen and in the prosody log I see the following:

error Traceback[httpserver]: /usr/lib/prosody/modules/mod_bosh.lua:329: attempt to index field ‘?’ (a nil value)
stack traceback:
[C]: in function ‘parse’
/usr/lib/prosody/util/xmppstream.lua:288: in function ‘feed’
/usr/lib/prosody/modules/mod_bosh.lua:136: in function ‘?’
/usr/lib/prosody/util/events.lua:79: in function </usr/lib/prosody/util/events.lua:75>
(tail call): ?
(tail call): ?
(tail call): ?
/usr/lib/prosody/net/http/server.lua:274: in function </usr/lib/prosody/net/http/server.lua:219>
[C]: in function ‘xpcall’
/usr/lib/prosody/net/http/server.lua:110: in function ‘process_next’
/usr/lib/prosody/net/http/server.lua:126: in function ‘success_cb’
/usr/lib/prosody/net/http/parser.lua:177: in function ‘feed’
/usr/lib/prosody/net/http/server.lua:157: in function </usr/lib/prosody/net/http/server.lua:156>
(tail call): ?
/usr/lib/prosody/net/server_select.lua:948: in function </usr/lib/prosody/net/server_select.lua:932>
[C]: in function ‘xpcall’
/usr/bin/prosody:80: in function ‘loop’
/usr/bin/prosody:90: in main chunk
[C]: ?

Which prosody version do you use? You had set allow empty tokens right?