I'm not sure if it's how the forum formats text, but it looks like all the options are crammed together -- there needs to be a space between the options (which start with a hyphen ("-")).
Also, it looks like you're specifying the Application rather than the Application Group. So try this one instead:
arsload -h {} -u {user} -p {pass}-vf -XG -g {AppGroup} -a {Application} MEDHA.out.2.MEDHA.MEDHA
(FYI, I used the 'teletype' button in the message editor to get a fixed-width font.)
-JD.