itch.io

It's internet. Same thing happened to me. I have fast internet and download speed but probably it's something to do with the provider or with the code it is made that only select providers can download it normally. On how I downloaded it,I used my Mobile Data

How exactly are you having trouble redownloading? Is there an error message or a screenshot you can send us to help us better understand the problem?

I know a few people have had issues downloading on the Android launcher. You could try uninstalling the game completely, then open the launcher again and download it (don't close the launcher while it's downloading, as that can cause problems)