Disconnected because of using the '/data get @s' command on a server

You disconnected if you try to use the command "/data get @s" on a server:

18w02a\:

Disconnection Massage:

Internal Exception: io.netty.handler.codec.DecoderException: java.lang.IndexOutOfBoundsException: readerIndex(1) + length(1) exceeds writerIndex(1): PooledUnsafeDirectByteBuf(ridx: 1, widx: 1, cap: 1)

Server Console gives the Output:

[Netty Epoll Server IO #2/ERROR]: io.netty.handler.codec.EncoderException: String too big (was 64584 bytes encoded, max 32767)