ProtocolLib
Using the ProtocolLib Plugin in Youer
You need to install the ProtocolLib plugin version specifically fixed for the Youer server.
Download
Click to download the ProtocolLib fixed build
Compatibility Notes
Because NeoForge modified the constructor of RegistryFriendlyByteBuf, the original ProtocolLib plugin cannot work properly on the Youer server.
Specifically, NeoForge changed the constructor implementation of the RegistryFriendlyByteBuf class, which affects ProtocolLib's bytecode injection mechanism.
Fix
The fixed ProtocolLib adapts to this NeoForge change, ensuring it can be injected and run normally in the Youer server environment.
For the detailed technical changes, see: NeoForge RegistryFriendlyByteBuf constructor change