Bug in debian 11 with prosody 0.12 and lua5.4

[susobaco]

I attach the log:

Jun 08 13:57:56 runnerV6G1SfhepFcA error Encountered error: /opt/xmpp-cloud-auth/prosody-modules/mod_auth_external.lua:58: attempt to call a nil value (method 'endproc')
stack traceback:
/opt/xmpp-cloud-auth/prosody-modules/mod_auth_external.lua:58: in field '?'
/usr/share/lua/5.4/prosody/util/events.lua:81: in function </usr/share/lua/5.4/prosody/util/events.lua:77>
(...tail calls...)
/usr/share/lua/5.4/prosody/util/startup.lua:636: in function 'util.startup.cleanup'
/usr/share/lua/5.4/prosody/util/startup.lua:641: in function 'util.startup.shutdown'
/usr/share/lua/5.4/prosody/util/async.lua:156: in upvalue 'func'
/usr/share/lua/5.4/prosody/util/async.lua:144: in function </usr/share/lua/5.4/prosody/util/async.lua:142>
Jun 08 13:57:56 server_epoll error Error in timer: /usr/share/lua/5.4/prosody/util/async.lua:154: /opt/xmpp-cloud-auth/prosody-modules/mod_auth_external.lua:58: attempt to call a nil value (method 'endpro>
stack traceback:
/opt/xmpp-cloud-auth/prosody-modules/mod_auth_external.lua:58: in field '?'
/usr/share/lua/5.4/prosody/util/events.lua:81: in function </usr/share/lua/5.4/prosody/util/events.lua:77>
(...tail calls...)
/usr/share/lua/5.4/prosody/util/startup.lua:636: in function 'util.startup.cleanup'
/usr/share/lua/5.4/prosody/util/startup.lua:641: in function 'util.startup.shutdown'
/usr/share/lua/5.4/prosody/util/async.lua:156: in upvalue 'func'
/usr/share/lua/5.4/prosody/util/async.lua:144: in function </usr/share/lua/5.4/prosody/util/async.lua:142>
stack traceback:
[C]: in function 'error'
/usr/share/lua/5.4/prosody/util/async.lua:154: in local 'handler'
/usr/share/lua/5.4/prosody/util/async.lua:232: in method 'run'
/usr/share/lua/5.4/prosody/util/async.lua:70: in function </usr/share/lua/5.4/prosody/util/async.lua:68>
[C]: in function 'util.xpcall.xpcall'
/usr/share/lua/5.4/prosody/net/server_epoll.lua:148: in upvalue 'runtimers'
/usr/share/lua/5.4/prosody/net/server_epoll.lua:1038: in function 'net.server_epoll.loop'
[C]: in function 'util.xpcall.xpcall'
/usr/bin/prosody:78: in local 'loop'
/usr/bin/prosody:83: in main chunk
[C]: in ?

Salud!