In most cases, you can solve these problems yourself by following the troubleshooting tips provided here. Don't panic if your cash app transfer failed or payment fails through the Cash app. This is one of the reasons that could be the reason for paying with the failed cash app. Although, You should check out app updates. If you are having problems transferring to the cash app and your payment in the Cash app has failed, you first need to check if the cash app is up to date on your mobile phone. If not, please update the app to the latest version to make payments smoothly.