I know you replaced it with anonymous names but my point was to make sure the file name in the file path are exactly the same as the one in the command, also make sure that your namespace doesn't have any capital letters or the entire datapack will not work if it still doesn't work then here's some debugging options:
Make sure (and I know this seems obvious) that you're in the right world
Make sure that your datapack name and namespace contain no capital letters
and see if your datapack appears
go to your Minecraft launcher settings and switch on 'Open output log when the game starts' which will open a log of any errors about your datapack once you get into the world.