use remote address

src/main/java/com/velocitypowered/proxy/connection/MinecraftConnection.java

@@ -101,7 +101,7 @@ public class MinecraftConnection extends ChannelInboundHandlerAdapter {
             if (association != null) {
                 logger.error("{}: exception encountered", association, cause);
             } else {
-                logger.error("{} encountered an exception", cause);
+                logger.error("{} encountered an exception", ctx.channel().remoteAddress(), cause);
             }
 
             closed = true;