I have a minecraft Resource Pack in version 1.15.2, but I don't see it and I don't know what the error is!
Did it ever work?
Take a pack of what's possible, copy it, and just paste the folder with the pictures or textures. Then it should work. I once had that with the Badlion Client with a pack.
See if there's a file called "pack.mcmeta" in the / ZIP archive folder. If not, Minecraft does not know that it is a texture pack and therefore does not display it. In this case, just have a look at MinecraftWiki. It says how to create the file correctly. Or copy the file from another texture pack into your texture pack.
Yes
I already have it
I have! But does not work
Okay, then I have no idea, sorry
Funny. Then wait for the next version and play without the TP. Unfortunately I can't help you I think