Hi everybody.
We recently upgraded our Debian 7 package for ejabberd (v 2.1.10), and while the ejabberd server continues to run without any issues, running `ejabberdctl register` or `ejabberdctl registered_users` just dies with this error message:
Problem 'error {case_clause,
                   {'EXIT',
                       {function_clause,
                           [{lists,zip,
                                [[{host,string}],[]],
                                [{file,"lists.erl"},{line,321}]},
                            {ejabberd_ctl,format_args,2,
                                [{file,"ejabberd_ctl.erl"},{line,319}]},
                            {ejabberd_ctl,call_command,3,
                                [{file,"ejabberd_ctl.erl"},{line,290}]},
                            {ejabberd_ctl,try_call_command,3,
                                [{file,"ejabberd_ctl.erl"},{line,269}]},
                            {ejabberd_ctl,process2,3,
                                [{file,"ejabberd_ctl.erl"},{line,215}]},
                            {ejabberd_ctl,process,1,
                                [{file,"ejabberd_ctl.erl"},{line,200}]},
                            {rpc,'-handle_call_call/6-fun-0-',5,
                                [{file,"rpc.erl"},{line,203}]}]}}}' occurred executing the command.
Stacktrace: [{ejabberd_ctl,call_command,3,
                           [{file,"ejabberd_ctl.erl"},{line,290}]},
             {ejabberd_ctl,try_call_command,3,
                           [{file,"ejabberd_ctl.erl"},{line,269}]},
             {ejabberd_ctl,process2,3,[{file,"ejabberd_ctl.erl"},{line,215}]},
             {ejabberd_ctl,process,1,[{file,"ejabberd_ctl.erl"},{line,200}]},
             {rpc,'-handle_call_call/6-fun-0-',5,
                  [{file,"rpc.erl"},{line,203}]}]
This doesn't make a lot of sense to me. Perhaps someone here can help?