well these are not solutions… but a few issues that kept me from sleeping the last two days, so if something is not working, you might wanna check them out 
lua dependencies
lua 5.2 or 5.1 ?
basexx
luacrypto (might need libssl1.0-dev)
lua-cjson
luajwtjitsi
prosody version
jitsi-meet-tokens needs prosody-trunk (>= 1nightly747) or prosody-0.11
dpkg -l | grep jitsi to display versions
reading rights of localhost.crt and other cert related issues
Failed to load ‘/etc/prosody/certs/localhost.key’ is the symptom
chmod solves it and in jicofo config changed localhost to my jitsi domain, didn’t hurt
prosodyctl cert generate in some other cases
the prosody cfg.lua file
https://github.com/jitsi/lib-jitsi-meet/blob/master/doc/tokens.md#patching-prosody
I wonder if a component has to be declared for jvb? did it, didn’t hurt…
focus and jvb user/password declarations
i tried so much things that at some point focus and/or jvb weren’t declared as admins or with wrong passwords (to be found in config files in /etc/jitsi/jicofo/ and /etc/jitsi/videobridge/ directory, along with the sip-communicator.properties files (are those to be amended?)
storage, none or memory?
still don’t sure, depend on prosody version? went with none
is my token valid?
and then, 
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