Google play store reject all my kodular apps

[Django_s_Android_App (Django)]

Unable to upload app on Play console: Unoptimized apk

Whenever I am trying to upload apk in My play console it is showing the following error- You uploaded an APK or Android App Bundle that is signed with a key that is also used to sign APKs that are delivered to users. Because you are enrolled in App Signing by Google Play, you should sign your APK or Android App Bundle with a new key before you upload it. The app is new and while creating the draft on Console the google play signing was automaticlally enabled- Let Google manage and protect you…

Easy to find the answer with a simple community search. Took about 15 seconds.
Hint: i just copied and pasted your error message into the search mask