I bought Minecraft previously and now I don't have it

I had bought minecraft java some time ago, and the problem came when all the Java accounts were moved to Microsoft. I moved mine and now it appears that the minecraft I bought I no longer have. Any solution? the truth is that I would like to play again but I cannot thanks to this. If anyone needs photo checks feel free to ask me. Since I have photos from when I wanted to play with Shaders that I can't post now because of the site.