This started after running the /brew reload command and persists through server restarts.
Whenever I right click the cauldron in OP with nothing/the clock, it says "are you sure you have the right ingredients?" With the clock, it still tells me how long it's been boiling, and everything still works properly, but it's really distracting.
When I'm not OPed (I still have the user and moderator permissions for brewery) the message becomes "you do not have permission to use this mechanic, but again, it still works exactly as it should.
As I said, it wasn't doing this before I reloaded the config, but now that it is, even /reloading of /stopping the server doesn't fix it.

EDIT: Forgot to mention : Brewery version is Brewery-2.0.1, downloaded from the bukkit.org page, And my server is running the latest 1.15.2 spigot, (git-Spigot-6de3d4b-fc24934 according to my server log, API version 1.15.2-R0.1-SNAPSHOT I don't know what info is helpful and what isn't) made using build tools.

I'm sorry, this was completely unrelated, I accidentally enabled the cauldron mechanic of the Craftbook plugin, and it was trying to cook things, and putting out error messages because nothing was in the cauldron/my admin rank didn't have permission to use the cauldron.

Again, disregard or delete this issue

I still don't know why it was working before, as I configured the Craftbook mechanics before I started messing with Brewery, But there's no way /brew reload could've modified another plugins config file