Unable to Log on to XenMobile Admin Console Using Administrator Account

Not able to log on to XenMobile Server web console with administrator account. The following errors are noticed in the logs: 2016-04-06T09:31:08.358+0800 | EDC68337B8501EEC | WARN | http-nio-14443-exec-9 | ZDMAuthenticationProvider | Could not find administrator 2016-04-06T09:31:08.359+0800 |...