Unassign Orders

Hi All,

I am trying to do the unassign orders from planned orders, how to do this?
i follow the navigation like Order releases > Actions > Order management > Unassign - Buy but its showing the error like...

UNASSIGN AND DELETE ORDER - BUY
Unassign orders GUEST.20140826-0008,GUEST.20140826-0007 from buy shipments
Error


Process Step Entities Duration Status
Un-assign Orders
ORDER_RELEASE: 20140826-0008
PERSPECTIVE: B
DELETE_PERMANENT_ORDER_MOVEMENTS: true
0.70S Exception
ejb.JobOrderReleaseJoin records not found: sql= select jorj.job_gid, jorj.order_release_gid from job_order_release_join jorj, job j where j.consol_gid is not null and jorj.job_gid = j.job_gid and (jorj.order_release_gid IN (?,?)), sqlValues
Un-assign Orders
0.69S Exception
ejb.JobOrderReleaseJoin records not found: sql= select jorj.job_gid, jorj.order_release_gid from job_order_release_join jorj, job j where j.consol_gid is not null and jorj.job_gid = j.job_gid and (jorj.order_release_gid IN (?,?)), sqlValues

Please give me the soluation.

Thanks & Regards,
Chandu.