How to educate mobile app users to scroll down and check other required fields?

The App is showcasing the error messages below the text or input fields when the user press the [Next] floating action button. But the issue is users can't grab the attention on those fields because it can appear when they scroll down. In short, it required physical efforts.

P.S I couldn't split it into the wizard interface because it's a 3-page longer form and each page has minimum 6 fields.