Workflow doesn't work AX 2009

Hi everybody,

When I create Purchase Requisition Details & submit.

Workflow doesn’t work, and I see Normal 0 false false false EN-US X-NONE X-NONE the batch log like:

Infolog for Job Workflow Message processing (5637167696)
Infolog for Task Workflow message processing task (5639890199)
SysWorkflowEventDispatcher-onWorkflowCreated
The workflow configuration was not found.
SysWorkflowEventDispatcher-onWorkflowFault
Failed to find workflow configuration.
Infolog for Task Workflow message processing task (5639891276)
SysWorkflowEventDispatcher-onAcknowledgeWorkItem
SysWorkflowEventDispatcher-raiseWorkItemAcknowledgementEvent
ClrObject static method invocation error.
Exception has been thrown by the target of an invocation.
ClrObject static method invocation error.
Exception has been thrown by the target of an invocation.
ClrObject static method invocation error.
Exception has been thrown by the target of an invocation.

Could you please help me to figure out what happens and how to fix it?

Thanks in advance.

Regards,

Phuong.