WaterFall connections error

Hi
Some times when i wanna join , this happened
anyone know how to fix it?
last version

[17:17:25 ERROR]: [/46.245.98.112:19448|Raaf] <-> DownstreamBridge <-> [lobby] -
encountered exception
io.netty.handler.codec.DecoderException: Error decoding packet class Team with c
ontents:
±------------------------------------------------+
| 0 1 2 3 4 5 6 7 8 9 a b c d e f |
±-------±------------------------------------------------±---------------+
|00000000| 41 |A |
±-------±------------------------------------------------±---------------+
at net.md_5.bungee.protocol.MinecraftDecoder.decode(MinecraftDecoder.jav
a:82) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14-SNAPSHOT:c3d67e5:290]
at net.md_5.bungee.protocol.MinecraftDecoder.decode(MinecraftDecoder.jav
a:12) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14-SNAPSHOT:c3d67e5:290]
at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToM
essageDecoder.java:88) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14-SNAPSHOT:c3d
67e5:290]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(Abst
ractChannelHandlerContext.java:359) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14
-SNAPSHOT:c3d67e5:290]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(Abst
ractChannelHandlerContext.java:345) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14
-SNAPSHOT:c3d67e5:290]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(Abstra
ctChannelHandlerContext.java:337) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14-S
NAPSHOT:c3d67e5:290]
at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToM
essageDecoder.java:102) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14-SNAPSHOT:c3
d67e5:290]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(Abst
ractChannelHandlerContext.java:359) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14
-SNAPSHOT:c3d67e5:290]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(Abst
ractChannelHandlerContext.java:345) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14
-SNAPSHOT:c3d67e5:290]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(Abstra
ctChannelHandlerContext.java:337) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14-S
NAPSHOT:c3d67e5:290]
at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMes
sageDecoder.java:323) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14-SNAPSHOT:c3d6
7e5:290]
at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMes
sageDecoder.java:310) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14-SNAPSHOT:c3d6
7e5:290]
at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageD
ecoder.java:426) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14-SNAPSHOT:c3d67e5:2
90]
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessage
Decoder.java:278) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14-SNAPSHOT:c3d67e5:
290]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(Abst
ractChannelHandlerContext.java:359) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14
-SNAPSHOT:c3d67e5:290]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(Abst
ractChannelHandlerContext.java:345) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14
-SNAPSHOT:c3d67e5:290]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(Abstra
ctChannelHandlerContext.java:337) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14-S
NAPSHOT:c3d67e5:290]
at io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandle
r.java:286) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14-SNAPSHOT:c3d67e5:290]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(Abst
ractChannelHandlerContext.java:359) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14
-SNAPSHOT:c3d67e5:290]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(Abst
ractChannelHandlerContext.java:345) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14
-SNAPSHOT:c3d67e5:290]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(Abstra
ctChannelHandlerContext.java:337) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14-S
NAPSHOT:c3d67e5:290]
at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(Defau
ltChannelPipeline.java:1408) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14-SNAPSH
OT:c3d67e5:290]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(Abst
ractChannelHandlerContext.java:359) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14
-SNAPSHOT:c3d67e5:290]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(Abst
ractChannelHandlerContext.java:345) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14
-SNAPSHOT:c3d67e5:290]
at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChanne
lPipeline.java:930) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14-SNAPSHOT:c3d67e
5:290]
at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(Abstra
ctNioByteChannel.java:163) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14-SNAPSHOT
:c3d67e5:290]
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.jav
a:677) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14-SNAPSHOT:c3d67e5:290]
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEve
ntLoop.java:612) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14-SNAPSHOT:c3d67e5:2
90]
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.ja
va:529) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14-SNAPSHOT:c3d67e5:290]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:491) ~[Waterf
all.jar:git:Waterfall-Bootstrap:1.14-SNAPSHOT:c3d67e5:290]
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThread
EventExecutor.java:905) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14-SNAPSHOT:c3
d67e5:290]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_162]
Caused by: java.lang.IndexOutOfBoundsException: readerIndex(1) + length(1) excee
ds writerIndex(1): AbstractPooledDerivedByteBuf$PooledNonRetainedSlicedByteBuf(r
idx: 1, widx: 1, cap: 1/1, unwrapped: PooledUnsafeDirectByteBuf(ridx: 831, widx:
837, cap: 1024))
at io.netty.buffer.AbstractByteBuf.checkReadableBytes0(AbstractByteBuf.j
ava:1428) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14-SNAPSHOT:c3d67e5:290]
at io.netty.buffer.AbstractByteBuf.readByte(AbstractByteBuf.java:723) ~[
Waterfall.jar:git:Waterfall-Bootstrap:1.14-SNAPSHOT:c3d67e5:290]
at net.md_5.bungee.protocol.DefinedPacket.readVarInt(DefinedPacket.java:
148) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14-SNAPSHOT:c3d67e5:290]
at net.md_5.bungee.protocol.DefinedPacket.readVarInt(DefinedPacket.java:
138) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14-SNAPSHOT:c3d67e5:290]
at net.md_5.bungee.protocol.DefinedPacket.readString(DefinedPacket.java:
28) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14-SNAPSHOT:c3d67e5:290]
at net.md_5.bungee.protocol.packet.Team.read(Team.java:45) ~[Waterfall.j
ar:git:Waterfall-Bootstrap:1.14-SNAPSHOT:c3d67e5:290]
at net.md_5.bungee.protocol.MinecraftDecoder.decode(MinecraftDecoder.jav
a:60) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.14-SNAPSHOT:c3d67e5:290]
… 31 more
[17:17:25 INFO]: [Raaf] disconnected with: The server you were previously on wen
t down, you have been connected to a fallback server