Other versions, uploaded to the launcher

Hi, on 02/12/2020 I noticed that there was an update for Minecraft launcher. When I tried to get on the version everything was fine. The next day I wanted to play minecraft, I wanted to play BlazingPack 1.8.8 (This is a Polish Pvp package), I noticed that it was missing from the version. That's why I go to Installation, new and choose BlazingPack 1.8.8. Once I clicked create, I was hoping the version would download, but it didn't download. I couldn't play on other versions, I could only play on the launcher versions (eg 1.16.4, 1.12.2, 1.8.9). I couldn't play or download versions like BlazingPack, Labymod etc.
I would like to add that I come from Poland and I cannot speak English well.