Quoting Why is the Yahoo Mail app not working?

When an email app on your phone is not up to date with the latest version it may fail to connect to our servers and emails will stop showing up on your email app. Make sure you are using the latest version of Yahoo Mail, grab the latest version in your device's app store. visit https://askanyquery.com/tech/why-does-yahoo-mail-keep-stopping-on-my-device/">yahoo mail app crashing