APKs or App Bundles are available to 64-bit devices, but they only have 32-bit native

I am following this guide for this problem

I am tring to upload the apk splitted into 3 APK’s because I cannot figure out how to enroll into the signing key thing from google. Yet, I’m still getting the same error that goes:

The following APKs or App Bundles are available to 64-bit devices, but they only have 32-bit native code: 300004.

Include 64-bit and 32-bit native code in your app. Use the Android App Bundle publishing format to automatically ensure that each device architecture receives only the native code it needs. This avoids increasing the overall size of your app

If anyone is still having this problem, I just followed this guide along and it turn out accepted