Error: Address in use

[krainboltgreene]

For some reason the zmq server craps and tries to rebuild after some POST requests

POST /images?lenses=original,thumbnail 201 2761.070 ms - -
 {"name":"lumin","hostname":"fb7dbf3945d5","pid":54,"level":30,"msg":"Finished processing 335b4eb2-d5e6-42f2-99f6-736308bea4cb/thumbnail","time":"2017-03-28T07:54:42.305Z","v":0}
 {"name":"lumin","hostname":"fb7dbf3945d5","pid":54,"level":30,"msg":"Finished processing 335b4eb2-d5e6-42f2-99f6-736308bea4cb/original","time":"2017-03-28T07:54:42.393Z","v":0}
 /usr/lib/lumin/node_modules/zeromq/lib/index.js:442
   this._zmq.bindSync(addr);
             ^

 Error: Address in use
     at exports.Socket.Socket.bindSync (/usr/lib/lumin/node_modules/zeromq/lib/index.js:442:13)
     at zmqPushClient (/usr/lib/lumin/transpiled/remote/zmqPushClient/index.js:11:38)
     at Pumpify.<anonymous> (/usr/lib/lumin/transpiled/server/index.js:64:31)
     at emitNone (events.js:91:20)
     at Pumpify.emit (events.js:185:7)
     at finishMaybe (/usr/lib/lumin/node_modules/readable-stream/lib/_stream_writable.js:511:14)
     at afterWrite (/usr/lib/lumin/node_modules/readable-stream/lib/_stream_writable.js:393:3)
     at onwrite (/usr/lib/lumin/node_modules/readable-stream/lib/_stream_writable.js:384:7)
     at Pumpify.WritableState.onwrite (/usr/lib/lumin/node_modules/readable-stream/lib/_stream_writable.js:126:5)
     at Pumpify.g (events.js:292:16)