prosody mod_muc_log_http error

Jul 08 08:46:26 http.server     error   Traceback[httpserver]: ...ib/prosody/modules/muc_log_http/mod_muc_log_http.lua:111: bad argument #1 to 'pairs' (table expected, got no value)
stack traceback:
        [C]: in function 'pairs'
        ...ib/prosody/modules/muc_log_http/mod_muc_log_http.lua:111: in function 'generate_room_list'
        ...ib/prosody/modules/muc_log_http/mod_muc_log_http.lua:681: in function <...ib/prosody/modules/muc_log_http/mod_muc_log_http.lua:649>
        (tail call): ?
        /usr/lib/prosody/util/events.lua:67: in function 'fire_event'
        /usr/lib/prosody/net/http/server.lua:221: in function </usr/lib/prosody/net/http/server.lua:164>
        (tail call): ?
        [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:154: in function 'feed'
        /usr/lib/prosody/net/http/server.lua:150: in function </usr/lib/prosody/net/http/server.lua:149>
        (tail call): ?
        /usr/lib/prosody/net/server_select.lua:854: in function </usr/lib/prosody/net/server_select.lua:836>
        [C]: in function 'xpcall'
        /usr/bin/prosody:376: in function 'loop'
        /usr/bin/prosody:407: in main chunk
        [C]: ?

debugging mod_muc_log_http.lua:

- get_room_list() does not seem to return a table
- which can happen when component or muc is not set
- component is of type "table"
- muc is of type "nil" - so this is the problem


debugging output via::

  module:log("info", type(muc));
  module:log("info", muc);

instead of restarting prosody, connect via telnet to mod_admin_telnet console and reload the module. it reloads the whole module code::

  module:reload('muc_log_http')

Problem source: mod_muc_log_http was loaded in globals modules_enabled section.