I can't submit because of Schedule B Line 7a. It stated the question needed to be blank, so I deleted the form using the tax tools. Now its saying it needs an answer??

I'm confused because I went back to delete Schedule B Line 7a manually. It cleared the form and I tried resubmitting but now its telling me that 7a needs a yes or no answer, when before, it was telling me it needed to be blank. What am I supposed to do, leave an answer or leave it blank? Because either way I can't submit!