The file does not have the correct extension * .aab copy, instead of * .aab.
Android App Bundles (* .aab) is a publishing format. Android devices require * .apk files to install applications. That is, you need to install additional programs on your smartphone to install your game. This is completely inconvenient and creates unnecessary difficulties that you do not want to deal with.
On the page when uploading files, you can specify the platform for the file.