Done EVs/IVs mod not working

So, I know this isn't about the server, and I apologize if this isn't meant to be here, but I just downloaded the IVs/EVs mod (1.8.9-4.1.0 I believe) yet it doesn't work when I try it. anyone know why? Thanks

 

you do not need any mods for ivs/evs it will work without any extra mods

 

Sorry, I meant to include this is in single player, my apologies

 

im not sure about sp have you tried asking the pixelmon devs?

 

How would I get in contact with them?

 

they have a discord look on there website

 

Oh, thanks very much man, will do