If you are having a permissions problem please open a ticket with the help desk. It's most like a file ownership issue. The techs can change the ownership back to you.
Please open a ticket with the help desk. Most likely the ownership is set to 'nobody' which means you don't own it and can't overwrite it. The techs can change the ownership back to you.
Well if it doesn't run there is no way you will get an email. But if it is acting erratic and not running when you think it should please open a ticket with the help desk and have the techs look into it.