CSS PROFILE Question - W-2?

Hi all. I’m currently filling out the CSS Profile. My parents are the owners of a small business. Their tax return is practically all form 1040. I cannot find the W-2 form. After looking online, it seems that small business owners may not have to fill out the W-2? I’m confused since the CSS Profile asks so many questions that refer to the W2, but my family doens’t seem to have it.

What should I Do? CSS is due yesterday so I could really use help ASAP!