Plan termination fail during termination of election

1)Login with Partner on Lb
2)Search and select company
3)Go to benadmin
4)Search and select employee
5)Navigate to benefits->Terminate plan elections
6)Select benefit plan and set termination date
7)Click on save
8)Plan termination fails occurs many times on LB.
9)On stage this issue is intermittent.

Actual Result:Plan termination fail during termination of election

Expected result: Election should terminate successfully