I was paid as a freelancer in another state before I started my LLC. Turbotax is forcing it as business income, how do I change this?

If you were paid as a freelancer, this is business income.  You can create a separate business for this work, to keep track of income and expenses separately.  You will have state business income in the state you worked in.

You should report the income from your freelance business on Schedule C. 

Here's how to report your freelance business in TurboTax Online:

• Navigate to Federal > Wages & Income > Self-employment income and expenses > Start
• Answer "Yes" to the question "Did you have any self-employment income or expenses?"
• Choose to add a new line of work
• Continue until the interview asks "how does your work fit into your big picture?", based on the information you provided, it's a side job and/or a business.
• Answer all the informational questions until you get to the screen  "Let's enter the income for your work."  Here, enter that you received common income- Other self-employed income, including cash and checks; then enter what you were paid.
• Once you've entered your income, type in your expenses in the proper categories, TurboTax Online will recommend popular categories, but refer to your records to ensure you are deducting all of your expenses