So my band Love in my Heart, Hatred in People has been rejected. I must prove it plays metal, so here's the link https://www.youtube.com/watch?v=I1n3OBMwew4

Some people told me it sounds more like rock, but there are many rock-like bands here. A lot of metal bands mix their styles too. And if we talk about the release, it's pretty private. I have all the files for myself by now. I don't see the reason why it can be rejected. I don't have any bandcamp or anything, I just started.

We haven’t evaluated your band’s music yet. It was rejected because when you submitted it, you did not include any proof that your album has a valid release. We have different criteria for physical and digital releases. If your album has physical copies, resubmit and attach pictures of them. If your album is digital, it must be available for digital download (that is, no YouTube or Spotify; must be something like iTunes, Amazon, or Bandcamp). Please keep in mind we evaluate digital releases somewhat more thoroughly for signs of professional presentation and production, since it takes less effort to create a digital release than a physical one.

Based on what you said, it sounds like it hasn’t been released yet if you’re the only one with a copy of the files? Sounds like you don’t have a valid release yet, then. In any event, your band is not blacklisted, so just resubmit it once your band has a valid release and attach proof of it to your submission.