Your Android App Bundle has an invalid signature. Reinstall with a valid signature

I will publish the application made with codes on the play store, but there is a mistake I have received, I need your support on this issue.

The error is:
Your Android App Bundle has an invalid signature. Reinstall with a valid signature.

The first thing you should do is to search the community

https://community.kodular.io/search?context=topic&context_id=283680&q=Bundle%20has%20an%20invalid%20signature&skip_context=true

Taifun