[rabbitmq-discuss] Repeating error from Management Plugin

[Al Al]

Hi, 
I have been using the management plugin without any issues then suddenly I began getting errors when I try to do any action (except for GET):
For example, add Exchange:HTTP PUThttp://myhost:55672/api/exchanges/%2F/testExchange
500 Internal Server Error. The server encountered an error while processing this request{error,
 {exit,
  {{{badmatch,
     {badrpc,
      {'EXIT',
       {undef,
        [{rabbit_direct,start_channel,
          [1,<0.30609.0>,<0.30602.0>,<<"<rabbit at xenon.2.30602.0>">>,
           rabbit_framing_amqp_0_9_1,
           {user,<<"guest">>,
            [administrator],
            rabbit_auth_backend_internal,
            {internal_user,<<"guest">>,
             <<59,41,152,111,63,198,158,154,3,61,54,115,169,32,145,215,66,47,
               97,80>>,
             [administrator]}},
           <<"/">>,
           [{<<"publisher_confirms">>,bool,true},
            {<<"exchange_exchange_bindings">>,bool,true},
            {<<"basic.nack">>,bool,true},
            {<<"consumer_cancel_notify">>,bool,true}],
           <0.30606.0>]},
         {rpc,local_call,3},
         {amqp_channel_sup,'-start_writer_fun/4-fun-0-',7},
         {amqp_channel,start_writer,1},
         {amqp_channel,do_rpc,1},
         {amqp_channel,handle_call,3},
         {gen_server,handle_msg,5},
         {proc_lib,init_p_do_apply,3}]}}}},
    [{amqp_channel_sup,'-start_writer_fun/4-fun-0-',7},
     {amqp_channel,start_writer,1},
     {amqp_channel,do_rpc,1},
     {amqp_channel,handle_call,3},
     {gen_server,handle_msg,5},
     {proc_lib,init_p_do_apply,3}]},
   {gen_server,call,[<0.30609.0>,open,infinity]}},
  [{gen_server,call,3},
   {amqp_gen_connection,open_channel,3},
   {rabbit_mgmt_util,with_channel,5},
   {rabbit_mgmt_util,http_to_amqp,5},
   {webmachine_resource,resource_call,3},
   {webmachine_resource,do,3},
   {webmachine_decision_core,resource_call,1},
   {webmachine_decision_core,accept_helper,0}]}}Similarly for other actions like Publish message, Delete Exchange, Add Queue. I'm not sure I understand what the errors in the log file mean.I am on CentOS 6.0 running RabbitMQ version 2.6.1 and Erlang R14B04.I'm not sure what caused this problem. I have been using this set-up without any issues. The only thing new I have been doing is using the Erlang and Python (pika) clients to declare exchanges.Log file attached.


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