Approver not listed when submitting ePayment Requisitions

Dear All,

has anyone come accross same problem when you want to submit epayment requisition voucher , the approver you meant to choose is not on the list. But when i replicate in testing environment , the approver was listed. I try to compare the data and I don't find any difference related to the supervisor assigned.

Where else shoud I check ? or is there anyone know the query to the list approval id in the module?

This one is on my production env. it didn't automatically assign the approver

and this one is on my testing env.

appreciate it there are any feedback. I'm stuck.