Hi Kritika,
If you had already restarted the bg services and still observing the issue,could you check if there are duplicate rows , which may cause issues in executing the process , since there should be unique value
So the first step would be to identify the process. The process instance ID being referred to is -> 11563029
One of the options is to check this from the UI, wherein open any process instance and replace the above instance id
Else you may check from the database:
SELECT * FROM BPM_RUN_STEP_ACTION_RESULTS WHERE status_code = 'BPM_AIS_RUNNING' AND id =11563029
If it is indeed duplicate result set which the process is referring to , then removal of the same from db would help
Regards,
Samik