Uncaught TypeError: Cannot convert undefined or null to object

got it on 2 node ns_server with loaded travel-sample
both nodes with Data, Index, Query services enabled

[menelaus:warn,2015-05-28T20:07:30.751-07:00,n_0@10.17.0.46:<0.4312.0>:menelaus_web:loop_inner:539]Client-side error-report for user undefined on node 'n_0@10.17.0.46':
User-Agent:Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/43.0.2357.65 Safari/537.36
Got unhandled error:
Uncaught TypeError: Cannot convert undefined or null to object
At:
http://127.0.0.1:9000/js/settings.js:431:41
Backtrace:
TypeError: Cannot convert undefined or null to object
at Function.keys (native)
at http://127.0.0.1:9000/js/settings.js:431:41
at Array.forEach (native)
at Function..each..forEach (http://127.0.0.1:9000/js/underscore.js:76:11)
at http://127.0.0.1:9000/js/settings.js:430:11
at Function..each..forEach (http://127.0.0.1:9000/js/underscore.js:84:24)
at Object.UpdatesNotificationsSection.buildPhoneHomeThingy (http://127.0.0.1:9000/js/settings.js:426:7)
at afterDelay (http://127.0.0.1:9000/js/settings.js:482:48)
at _super.bugsnag (http://127.0.0.1:9000/js/bugsnag.js:128:30)
at http://127.0.0.1:9000/js/bugsnag.js:583:15