Error Authenticating Remote Debug Message

hi, i have a problem when use the socketbug

i run server successfully and open console and application to connect the server rightly.

but when i click DEBUG TEXT and other button in client/example/index.html

there occur error on server terminal which run socketbug_server.js

the ERROR:

zhangyang09@linux:/usr/local/socketbug$ node socketbug_server.js 

   info  - socket.io started

   info  - handshake authorized 7314333162030731849

   info  - handshake authorized 905616608131679385

Error Authenticating Remote Debug Message           <-- Click DEBUG TEXT button

{ stack: [Getter/Setter],

  arguments: [ 'clients', undefined ],

  type: 'non_object_property_load',

  message: [Getter/Setter] }

Error Authenticating Remote Debug Message

{ stack: [Getter/Setter],

  arguments: [ 'clients', undefined ],

  type: 'non_object_property_load',

  message: [Getter/Setter] }

I expect to look socketbug's excellent. can you help me, thanks.