As you may see on this screenshot, the API mod is incompatible with 2 other mods.
But if I delete it, turns out I need it to play.
So, I have been trying to set up a LAN server with voice chat through VPN, and on a local server you cannot actually use commands like /ban or /op, so I came on another server and asked the admin what mod they use for those commands, they told me about the mod I need the API for, I installed it, then it took me a bit to figure out I had to install the API and not the loader, but now the problem is that the API doesn't work with voice chat mod and Sodium (which I installed just to use Iris Shaders) but there is the fact the adsmin of that server used the voice chat to tell me about the LAN World Plug-n-Play mod, and so I need the help to figure out what I did wrong here or how to make the mods compatible.