审批流审批时报错

使用的是cloud6.1，在审批时提示对象名 'T_WF_ENTRUSTRECEIVER' 无效。
[{"operation":"AP_ApprovalAssignHandle.LoadData"}]
发生时间： 2016-09-05 01:40:28
错误编号： BOS_ExecuteReader
错误信息： 对象名 'T_WF_ENTRUSTRECEIVER' 无效。
Sql语句： SELECT TOP 1 R.FCONSIGNOR, R.FCONSIGNSTATUS, E.FCONSIGNOR fconsignornew FROM T_WF_RECEIVER R LEFT OUTER JOIN T_WF_ENTRUSTRECEIVER E ON (E.FID = R.FID AND E.FCONSIGNSTATUS = 1) WHERE (R.FASSIGNID = @FASSIGNID AND R.FRECEIVERID = @FRECEIVERID) ORDER BY E.FENTRUSTRULEID ASC
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调用堆栈：
at Kingdee.BOS.App.Data.AbstractDatabase.ExecuteReader(DbCommand command, IEnumerable`1 paramList, CommandBehavior cmdBehavior, Boolean bNewCn)
at Kingdee.BOS.App.Data.AbstractDatabase.ExecuteReader(DbCommand command, IEnumerable`1 paramList, CommandBehavior cmdBehavior)
at Kingdee.BOS.App.Data.DBUtils.ExecuteReader(Context ctx, String strSQL, IEnumerable`1 paramList, CommandType cmdtype, CommandBehavior cmdBehavior, Boolean bNewCn)
at Kingdee.BOS.App.Data.DBUtils.ExecuteReader(Context ctx, String

请帮忙看下是什么问题呢