You also have no balance sheet accounts whatsoever. And you’re using a journal entry to apparently offset agent fees (an expense account) against rental income. Not only is it unbalanced, but it makes no sense whatsoever from the standpoint of double-entry accounting.
Manager is a tool for double-entry accounting. You won’t be able to use it until you know what it’s supposed to do. And you’ll never be able to use it only to record income and expenses without also having balance sheet accounts. I recommend starting with http://www.accountingcoach.com. Then start reading the Manager Guides. Create a test business and try things out. Then you’ll be ready to ask specific questions on the forum.