Q: I have phantom emails

AS you can see from the pictures below, I have phantom emails in just one of my email accounts that started when I updated to 9.3.5. I would go to the email and it showed 1 email unread, but there was no email. Now it's showing 3 emails unread and there are no emails. I have tried everything to get rid of this but it's not working. Can anyone give some insight to what is going on? I signed into my account where my email is and there is no email there. I deleted the junk and trash and cleared everything uo but it doesn't do a thing within the Mail app on my iPad. Any help would greatly be appreciated. It is showing 3 unread but as you can see, there's nothing there.