Getting error in MQ series message handlers

I am using MQ series version 3.0 on webM IS 6.0.1 with SP4. When I configured the message handler for put, and when I run the service I am getting the following error.

“PutMsgOnQueue com.wm.pkg.MQSeries.api.MQSeriesException: [BASMQSP.0003.0010] Attempted to invoke a disabled message handling service Stack trace data … 48e4930debb9c76610855c6072f NULL 48e4930debb9c76610855c6072f
2005-12-06 17:18:00 EST wm.MQSeries.runtime:put com.wm.pkg.MQSeries.api.MQSeriesException: [BASMQSP.0003.0010] Attempted to invoke a disabled message handling service”

Similar configuration is working fine from another system and not working from this system. I checked if the message handler is enabled or not and it is enabled. Can anyone help me with this problem?

Thanks in advance