When you click on 'Scenario management' link from overview page; following error is encountered on the webpage:
-- Close out of all the windows pertaining to Ca ARCserve Replication and High Availability.
-- Copy 'ws_Scenarios' Directory from 'C:\Program Files (x86)\CA\ARCserve RHA\Manager' to a tmp location on server where CA ARCserve RHA Control service is installed.
-- On the Control service server open Add/Remove programs window (alternatively you can click Start -->Run type 'Appwiz.cpl' and
that should open Add/Remove programs window.
-- Select 'Ca ARCserve RHA Control service' and select 'Change' and then select 'Repair'. Once you have finished the repair, launch
the Overview page and click 'Scenario Management' link that should fix the issue.