[sr-dev] Failed to suspend processing error

Hi, I have upgraded to Kamailio v4.3.3 rev. e275bc on my test server running debian wheezy 32 bit and getting this error, -- ERROR: async [async_sleep.c:248]: async_send_task(): failed to suspend the processing -- Basically, I am running a sql query in script which if returns any records then i suspend the transaction with "async_task_route" to process data returned by query later on. The problem happens when this "async_task_route" method is executed. This is old code which was working perfectly fine with Kamailio v4.3.2 and it only gives error after the upgrade to v4.3.3. Please help. Thank you.