It seems like a configuration issue, the "http://.catusp.local/em" address is incorrect, it should actually look like this: "https://ssadam.catsup.local:1159/em/console/logon/logon"

If your OS is WinDoze, I don't do WinDoze, but the following might help:

On a terminal (command) window check if the 10g console is up:

emctl status dbconsole

And post the results.