Keep getting 'internal Exception: io.netty.handler.codec.EncoderException: java.lang.NullPointerException' when trying to join the server. We had this before but reloggin and restarting the server ...

changed the title Internal Exception: java.lang.IllegalArgumentException: Registry ResourceKey [minecraft:root / apoli:configured_entity_condition] was missing.

The Minecraft launcher may show the ‘Internal Exception Java.IO.IOException’ issue if the Minecraft installation is corrupt or outdated. Moreover, the ...