Oracle.apps.fnd.framework.OAException: java.lang.Exception: WorkplanTaskListQueryCO.processBusinessO

Hi,
Getting below error while accesing projects in 11.5.10.2 apps.

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  Exception Details.   oracle.apps.fnd.framework.OAException: java.lang.Exception: WorkplanTaskListQueryCO.processBusinessObjectsJBO-27122: SQL error during statement preparation. Statement: SELECT * FROM (SELECT pppa.proj_progress_attr_id, pppa.project_id, pppa.object_id, pppa.object_type, pppa.progress_cycle_id, pppa.remain_effort_enable_flag, pppa.percent_comp_enable_flag, pppa.wq_enable_flag, pppa.next_progress_update_date, pppa.record_version_number, pa_action_set_utils.get_action_set_id('PA_TASK_PROGRESS','PA_PROJECTS',pppa.project_id) action_set_id, pppa.TASK_WEIGHT_BASIS_CODE, pppa.ALLOW_COLLAB_PROG_ENTRY, pppa.ALLOW_PHY_PRCNT_CMP_OVERRIDES, pppa.STRUCTURE_TYPE, nvl(ppa.STRUCTURE_SHARING_CODE,'SPLIT') STRUCTURE_SHARING_CODE FROM pa_proj_progress_attr pppa, pa_projects_all ppa where pppa.project_id = ppa.project_id) QRSLT WHERE (object_type = 'PA_STRUCTURES' AND object_id = :1 AND project_id = :2 AND structure_type = 'WORKPLAN') at oracle.apps.fnd.framework.OAException.wrapperException(OAException.java:891) at oracle.apps.pa.structure.webui.WorkplanTaskListQueryCO.processBusinessObjects(WorkplanTaskListQueryCO.java:458) at oracle.apps.pa.structure.webui.WorkplanTaskListQueryCO.processRequest(WorkplanTaskListQueryCO.java:99) at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:587) at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(OAWebBeanContainerHelper.java:247) at oracle.apps.fnd.framework.webui.OAQueryHelper.processRequest(OAQueryHelper.java:675) at oracle.apps.fnd.framework.webui.beans.layout.OAStackLayoutBean.processRequest(OAStackLayoutBean.java:350) at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:959) at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:926) at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:646) at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(OAWebBeanContainerHelper.java:247) at oracle.apps.fnd.framework.webui.beans.layout.OAStackLayoutBean.processRequest(OAStackLayoutBean.java:350) at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:959) at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:926) at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:646) at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(OAWebBeanContainerHelper.java:247) at oracle.apps.fnd.framework.webui.beans.layout.OAHeaderBean.processRequest(OAHeaderBean.java:389) at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:959) at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:926) at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:646) at oracle.apps.fnd.framework.webui.OAFlexibleContentHelper.processRequest(OAFlexibleContentHelper.java:504) at oracle.apps.fnd.framework.webui.beans.OAFlexibleContentBean.processRequest(OAFlexibleContentBean.java:356) at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:959) at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:926) at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:646) at oracle.apps.fnd.framework.webui.beans.layout.OAFlexibleLayoutBean.processRequest(OAFlexibleLayoutBean.java:357) at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:959) at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:926) at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:646) at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(OAWebBeanContainerHelper.java:247) at oracle.apps.fnd.framework.webui.OASubTabLayoutHelper.processRequest(OASubTabLayoutHelper.java:436) at oracle.apps.fnd.framework.webui.beans.layout.OASubTabLayoutBean.processRequest(OASubTabLayoutBean.java:465) at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:959) at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:926) at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:646) at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(OAWebBeanContainerHelper.java:247) at oracle.apps.fnd.framework.webui.beans.layout.OAStackLayoutBean.processRequest(OAStackLayoutBean.java:350) at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:959) at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:926) at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:646) at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(OAWebBeanContainerHelper.java:247) at oracle.apps.fnd.framework.webui.OAPageLayoutHelper.processRequest(OAPageLayoutHelper.java:1136) at oracle.apps.fnd.framework.webui.beans.layout.OAPageLayoutBean.processRequest(OAPageLayoutBean.java:1569) at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:959) at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:926) at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:646) at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(OAWebBeanContainerHelper.java:247) at oracle.apps.fnd.framework.webui.beans.form.OAFormBean.processRequest(OAFormBean.java:385) 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