x12envlope document type not being generated

HI All,

we are having the following existing architecture for Processing EDI.The scheduler in webmethods picks up the flat file from the source system and converts into EDI and it will be queued as the other scheduler in the webmethods runs which changes the user status change from Queued to Done(when i did check the code the service which is being scheduled internally invoking wm.b2b.editn.batch process)looks like it will generate x12 envelope which delivers to the customer. But some how it is not working right now. Nothing has been changed recently.It is working till the EDI document getting generated and not able to generate x12 envelope to be created and causing the data not sent to the customer.

Could anyone please help,

Thanks in advance,