There are several reason that I can think of right away.
- Your user may not have permissions to deploy (is your account a business, personal?, are you admin?)
- You account may not have permissons to deploy the level/type of resources you were attempting to deploy.
Just like previously stated. More information is needed. The requested information is important (what was the error, what is your sub) but also what permissions does your user have, what type of account? I'd be happy to help if you provide more information.
BR,
Mark