When i downloaded the mod Loot bags weren't dropping, so I went into creative and looked at the loot bags. When I did it said there was no loot table, I went into the config and couldn't really understand anything in there. I am playing on a mac in minecraft version 1.10.2

Delete both configs and let them get remade by the game. If it's still happening, I'll need both config files and the runtime log, so put them in pastebin and link them.

That seems to work for me, I don't know about the other person, though...