W-8BEN tax form is inactive in my Adobe Stock account. The “Start” button and all required fields are greyed out and cannot be clicked. I cannot complete or submit the tax form. Please help me activate or reset the form.

Hello. I am an Adobe Stock Contributor. My W-8BEN tax form is inactive. The form opens, but the “Start” button and all required fields are greyed out and cannot be clicked. I cannot complete or submit the tax form. I have tried different browsers, but the problem remains. Please help me activate or reset my W-8BEN tax form.