(Need Help) Bungee Cord Error

[ScxryGxng]

When I try to start my server up, I get this error in console. If someone can help me, I will give them a vouch, and the other owner on my server will give you a vouch as well.

root@vps636145:/home/BungeeServer/Bungeecord# java -Xmx5120m -Xms512m -jar server.jar
*** Warning, this build is outdated ***
*** Please download a new build from http://ci.md-5.net/job/BungeeCord ***
*** You will get NO support regarding this build ***
*** Server will start in 10 seconds ***
00:57:48 [INFO] Using OpenSSL based native cipher.
00:57:48 [INFO] Using native code compressor
00:57:48 [INFO] Enabled BungeeCord version git:BungeeCord-Bootstrap:1.8-SNAPSHOT:0646a30:1118
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by io.netty.util.internal.PlatformDependent0 (file:/home/BungeeServer/Bungeecord/server.jar) to field java.nio.Buffer.address
WARNING: Please consider reporting this to the maintainers of io.netty.util.internal.PlatformDependent0
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
00:57:48 [SEVERE] Jan 19, 2019 12:57:48 AM io.netty.util.internal.PlatformDependent <clinit>
INFO: Your platform does not provide complete low-level API for accessing direct buffers reliably. Unless explicitly requested, heap buffer will always be preferred to avoid potential system unstability.

00:57:48 [INFO] Not on Windows, attempting to use enhanced EpollEventLoop
00:57:49 [INFO] Epoll is working, utilising it!
00:57:49 [SEVERE] Exception in thread "main"
00:57:49 [SEVERE] java.lang.IllegalStateException: failed to create a child event loop
00:57:49 [SEVERE]     at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:68)
00:57:49 [SEVERE]     at io.netty.channel.MultithreadEventLoopGroup.<init>(MultithreadEventLoopGroup.java:49)
00:57:49 [SEVERE]     at io.netty.channel.epoll.EpollEventLoopGroup.<init>(EpollEventLoopGroup.java:61)
00:57:49 [SEVERE]     at io.netty.channel.epoll.EpollEventLoopGroup.<init>(EpollEventLoopGroup.java:49)
00:57:49 [SEVERE]     at net.md_5.bungee.netty.PipelineUtils.newEventLoopGroup(PipelineUtils.java:100)
00:57:49 [SEVERE]     at net.md_5.bungee.BungeeCord.start(BungeeCord.java:238)
00:57:49 [SEVERE]     at net.md_5.bungee.BungeeCordLauncher.main(BungeeCordLauncher.java:55)
00:57:49 [SEVERE]     at net.md_5.bungee.Bootstrap.main(Bootstrap.java:15)
00:57:49 [SEVERE] Caused by: java.lang.NullPointerException
00:57:49 [SEVERE]     at io.netty.util.internal.PlatformDependent0.allocateMemory(PlatformDependent0.java:330)
00:57:49 [SEVERE]     at io.netty.util.internal.PlatformDependent.allocateMemory(PlatformDependent.java:211)
00:57:49 [SEVERE]     at io.netty.channel.epoll.EpollEventArray.allocate(EpollEventArray.java:56)
00:57:49 [SEVERE]     at io.netty.channel.epoll.EpollEventArray.<init>(EpollEventArray.java:52)
00:57:49 [SEVERE]     at io.netty.channel.epoll.EpollEventLoop.<init>(EpollEventLoop.java:66)
00:57:49 [SEVERE]     at io.netty.channel.epoll.EpollEventLoopGroup.newChild(EpollEventLoopGroup.java:76)
00:57:49 [SEVERE]     at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:64)
00:57:49 [SEVERE]     ... 7 more