I'm sorry about the issue. Are you trying to access your yahoo email account on your Apple iPad tablet?
Is the Internet currently working fine on your iPad?
Can you please open the Safari app icon, then go to the yahoo.com website in the Safari app, then see if you can access your yahoo email temporarily in the Safari app?
Besides the iPad, do you also have a Windows XP, Vista, or 7 or 8 or 10, or Mac computer?
Please reply at the box below. Thank you,
Please type at the box below, then click on the Send button below to communicate with me, so I can help. Thank you,