Did you enter something in the W-2 section of TurboTax, even though you don't have a W-2? If so, you must delete the W-2 that you entered. You can't enter a W-2 if you don't actually have one.
The tag below your question indicates that you use TurboTax Deluxe Online. You can't enter self-employment income and expenses in Deluxe Online. You have to either use TurboTax Self-Employed Online, or any version of the CD/Download TurboTax software that you install on your own computer.
What are you trying to fix? If you need to fix a tax return that you already filed, see the post above by xmasbaby0 for links to instructions for amending a return.
