Hi Sai,
From the error message in your screen shot I have two observations:
1) Upgrade to the latest 3.4 to see if the issue goes away.
2) The code is stopped in the scheduler waiting for an interrupt to wake the RTOS back up. So I'd use the CodeWarrior register view to see what the SR is at and see if somehow your IMR's are preventing masking expected interrupts, and lastly look at the interrupt sources (PIT, UART, etc...) that should be generating an interrupt to see if they became disabled.
Happy Holidays,
David