Packet overflow

[17:29:10 INFO]: [legitbox|/85.206.115.240:57157] <-> ServerConnector [lunapark_smp] has connected
[17:29:10 WARN]: [/85.206.115.240:43949] <-> InitialHandler - overflow in packet detected! A string had more data than allowed. For more information, launch Waterfall with -Dwaterfall.packet-decode-logging=true
[17:29:10 INFO]: [legitbox|/85.206.115.240:57157] <-> ServerConnector [lunapark_smp] has disconnected

I mean, read it?
launch the server with that flag and provide the stack trace, otherwise there is 0 info at all as to what happened; All we can guess is that something mangled a packet, reproduce without plugins? etc

I’m new to the bungee, what is a stack strace exactly?

big scary error message

ive posted the log above

The log is useless because you failed to use the JVM argument you was told to use

as i said im a newbie here, there is my startup script
#!/bin/sh
cd /home/pi/Desktop/bungeecord
java -Xms512M -Xmx512M -jar 452.jar -Dwaterfall.packet-decode-logging=true

jvm args go before -jar

[quote=“legitbox, post:10, topic:9315, full:true”]
[18:26:54 INFO]: [legitbox|/85.206.115.240:62428] <-> ServerConnector [lunapark_smp] has connected
[18:26:54 WARN]: [/85.206.115.240:50357] <-> InitialHandler - overflow in packet detected! Cannot receive string longer than 1020 (got 1343 bytes)
[18:26:54 INFO]: [legitbox|/85.206.115.240:62428] <-> ServerConnector [lunapark_smp] has disconnected

tried on another machine, nothing changes
[19:37:52 WARN]: [/192.168.0.101:49711] <-> InitialHandler - overflow in packet detected! Cannot receive string longer than 1020 (got 1343 bytes)
[19:37:52 INFO]: [legitbox|/85.206.115.240:51183] <-> ServerConnector [lunapark_smp] has disconnected

2 second search appears to seem that your client basically sent a hostname which was too long