Connecting to Forge Server getting this Error when connecting from client

[Zelioth]

So the client says "Internal Exception: com.google.gson.JsonParseException: Error loading registry data: unknown element: Resourcekey[minecraft:worldgen/configured_Feature/powah:uraninite_ore_Dense]

But the server CMD says

[18:26:44] [Server thread/INFO] [minecraft/ServerGamePacketListenerImpl]: Zelioth_The_King lost connection: Internal Exception: io.netty.handler.codec.EncoderException: java.lang.ClassCastException: class sirttas.elementalcraft.recipe.instrument.io.sawing.SawingRecipe cannot be cast to class sirttas.elementalcraft.recipe.instrument.io.grinding.AirMillGrindingRecipe (sirttas.elementalcraft.recipe.instrument.io.sawing.SawingRecipe and sirttas.elementalcraft.recipe.instrument.io.grinding.AirMillGrindingRecipe are in module [email protected] of loader 'TRANSFORMER' @3dc82e6a)
[18:26:44] [Server thread/INFO] [minecraft/MinecraftServer]: Zelioth_The_King left the game
[18:26:44] [Server thread/INFO] [ne.ni.wa.WandsMod/]: remove player wand
[18:26:44] [Server thread/INFO] [voicechat/]: Disconnecting client Zelioth_The_King
[18:26:44] [Server thread/WARN] [minecraft/Connection]: handleDisconnection() called twice

Edited August 9, 2022 by Zelioth
Tittle correction