Unable to update apps on playstore

When I want to update my app it showed a warning message like this…

“Check these warnings before starting the rollout of this release. Addressing the warnings on this page will ensure your existing users are able to upgrade to the latest version of your app.”

When I check this message then it showed message like this…

" This APK results in unused code and resources being sent to users. Your app could be smaller if you used the Android App Bundle. By not optimizing your app for device configurations, your app is larger to download and install on users’ devices than it needs to be. Larger apps see lower install success rates and take up storage on users’ devices."

How to solve this problem.

Ignore it.