callback integration failing

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Hi All,

I am getting below error in call back integration .please tell me what is the reason of this error

 

Error Summary: ICS runtime execution encountered {http://schemas.oracle.com/bpel/extension}remoteFault while executing operation: InvokeInsertChildJobDetails_REQUEST Error Code: InvokeInsertChildJobDetails_REQUEST {http://schemas.oracle.com/bpel/extension}runtimeFault Error Reason: oracle.cloud.cpi.agent.transport.aq.CpiAQException: java.lang.IllegalStateException: Interrupt task is already scheduled for the thread Thread[[ACTIVE] ExecuteThread: '77' for queue: 'weblogic.kernel.Default (self-tuning)',5,Pooled Threads] and the type SO_TIMEOU