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]: ?