>> 2016-05-27 00:15:11,923 ERROR [org.gluu.oxtrust.ldap.service.StatusCheckerTimer] check_ssl retuned an unexpected value 2016-05-27 00:16:12,931 ERROR [org.gluu.oxtrust.ldap.service.StatusCheckerTimer] There was an error executing command check_ssl
This is common error and generally goes away by installing proper httpd cert.
If you can't login to your Gluu Server, the reason is there in oxauth.log.
Please feel free to share stack trace from that log.