1.20.6 Forge bug (i think lol)

[quur]

so there is a issue in this code that i cant contiune without solving it

public class ModArmorMaterials implements ArmorMaterials {

}

in this code it needs to implement to ArmorMaterails class but because of some reason its giving "Interface expected here" error

idk why can someone help me

Also this thing works on 1.20.1 but not on 1.20.6(my version)

[ERBF]

ArmorMaterials is not an interface. You want to extend a class, implement an Interface