Not working on 1.16.5

When i download this mod, i launch forge 1.16.5 to see that it doesn't work (Atleast that is what my forge said)
Please update this to 1.16.5 if you didn't do so already.

I am currently running it on 1.16.5, so it must be something you have done incorrectly.

im having the same problem

No info at all here. I'm going to need a crash log to help.