For Android you need to download a file ending in .apk. If there isn't one, then it won't work on your Android device and it should be played on a pc or other device.
That error (unable to parse) often indicates the games require an Android version, or features that your phone doesn't have. For example, if the developer set the game's minimum requirements to Android 9 or over and you have Android 7, you'll get that message. It can also happen with the graphics. It would be best to ask on the actual game page if possible, because the developer can tell you what settings they require. These settings will be different for every game on itch.io.