Reborn Core Mod 1.16.4/1.12.2/1.7.10 mod includes the common code sets and API for the mods of the author. This is a wonderful mod for you to use in the future.
Because of being the support mod, it will not have any effect when the individual installed into Minecraft. The mods that are supported by it usually use the same code structure. So to reduce the file size, save more time, and optimize everything, the author merged this code into this mod. To avoid the errors in-game, please install this mod first.
If you want to use the Reborn Core mod, please make sure Minecraft Forge is available on your devices for this mod can work effectively. Hope you will have a wonderful time when using this mod in the future. Good luck to you!