Internal Exception: io.netty.handler.codec.DecoderException: com.google.gson.JsonSyntaxException: com.google.gsonMalformedJsonException: Use JsonReader.setLenient(true) to accept malformed JSON at line 1 column 2

We were casualy playing on server when suddently 3 of us got kicked one player was farther away from where we were, and later i teleported to him it didn't kick me but when i came close to spawn chunks it kicked me again.