ui doesnt load server and stats pages in amazon ec2 vms

i was able to login and added node2 to node1 but the stats and server nodes are either empty or stuck in "loading..." mode

i see this error message in the logs:

Server error during processing: ["web request failed",

{path,"//pools/default/buckets"}

,

{type,error}

,

{what,function_clause}

,
{trace,
[

{proplists,get_value, [quotaUsed,undefined,undefined]}

,

{menelaus_web_buckets,interpret_ram_quota, 4}

,

{menelaus_web_buckets, parse_bucket_params_without_warnings,6}

,

{menelaus_web_buckets,parse_bucket_params, 5}

,

{menelaus_web_buckets, handle_bucket_create,2}

,

{menelaus_web,loop,3}

,

{mochiweb_http,headers,5}

,