An error occurred while uploading the app bundle

[p_s]

[gopi (Gopi Killer)]

Help me, I got "Upload failed" when update my app using AAB format in playstore

I uploaded my app by AAB format and it got " Upload failed. To upload an Android App Bundle you must be enrolled in App Signing by Google Play." when I tried upload by APK format, there was not a problem uploading. this is screenshot when I uploaded my app using AAB format [Picture3]