"Page Cannot be Found" - "HTTP 400 - Bad Request" error on clicking iview

Hi,

We are in EP6 SP19 cluster environment.We have a customized personalisation iview in our portal.This iview gives above mentioned error in one of our DI's when trying to perform any action on this iview.The data is being taken from DB of CI, so there is no issue with the concern par file as application in other DI's is working fine. Do i need to check any configaration in the portal.Please get back to me on this.