Webi Publication Error - Email

Hi,

While running a Webi publication, we are facing the below error. Not able to deliver the reports to recipients via mail.

2022-05-16 09:31:25,527 ERROR [PublishingService:HandlerPool-25] BusinessObjects_PublicationAdminErrorLog_Instance_XXXX - [Publication ID # XXXXX] - Failure: X | XXXXX | XXXXX@XXXXX.com | Failed (Failure)

It is required to be fixed urgently.

PS : We have changed the host name, but have made the necessary changes in CMC.

Thanks in advance.