syslink issue when calling allocate message

When the following function is called

 msg = (App_Msg *)MessageQ_alloc(Module.heapId, Module.msgSize);

(The module heapId is 1 and the msgSize is 800)

I get the following error

Assertion in ti/syslink/hlos/knl/Restrack.c line 377 (elm==NULL).

Seeking help to resolve the same

Thanks