SUP 2.1.3 ultraliteJ error [-1497]

I just started working on SUP.I downloaded the SUP101-Android Object API Project (2.2 SP01) from http://scn.sap.com/docs/DOC-8803.

It was working fine for sometime but once I restarted the system and started working again, it is not displaying the customer list on the emulator (only the button is displayed).The logcat reads ultraliteJ error [-1497] synchronization failed because mobilink returned authentication status '4' with value '4000' .I have attached a screenshot of the error .

Please help