Problem/Bug I cant even start my Bukkit server

it crashes with this message

Code:

---- Minecraft Crash Report ----
// I let you down. Sorry :(

Time: 09.08.18 00:40
Description: Exception in server tick loop

java.lang.IllegalStateException: failed to create a child event loop
    at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:88)
    at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:58)
    at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:47)
    at io.netty.channel.MultithreadEventLoopGroup.<init>(MultithreadEventLoopGroup.java:59)
    at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:77)
    at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:72)
    at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:59)
    at net.minecraft.server.v1_12_R1.ServerConnection$1.a(SourceFile:61)
    at net.minecraft.server.v1_12_R1.ServerConnection$1.init(SourceFile:58)
    at net.minecraft.server.v1_12_R1.LazyInitVar.c(SourceFile:10)
    at net.minecraft.server.v1_12_R1.ServerConnection.a(SourceFile:127)
    at net.minecraft.server.v1_12_R1.DedicatedServer.init(DedicatedServer.java:178)
    at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:522)
    at java.lang.Thread.run(Unknown Source)
Caused by: io.netty.channel.ChannelException: failed to open a new selector
    at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:175)
    at io.netty.channel.nio.NioEventLoop.<init>(NioEventLoop.java:149)
    at io.netty.channel.nio.NioEventLoopGroup.newChild(NioEventLoopGroup.java:127)
    at io.netty.channel.nio.NioEventLoopGroup.newChild(NioEventLoopGroup.java:36)
    at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:84)
    ... 13 more
Caused by: java.io.IOException: Unable to establish loopback connection
    at sun.nio.ch.PipeImpl$Initializer.run(Unknown Source)
    at sun.nio.ch.PipeImpl$Initializer.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at sun.nio.ch.PipeImpl.<init>(Unknown Source)
    at sun.nio.ch.SelectorProviderImpl.openPipe(Unknown Source)
    at java.nio.channels.Pipe.open(Unknown Source)
    at sun.nio.ch.WindowsSelectorImpl.<init>(Unknown Source)
    at sun.nio.ch.WindowsSelectorProvider.openSelector(Unknown Source)
    at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:173)
    ... 17 more
Caused by: java.net.SocketException: Permission denied: connect
    at sun.nio.ch.Net.connect0(Native Method)
    at sun.nio.ch.Net.connect(Unknown Source)
    at sun.nio.ch.Net.connect(Unknown Source)
    at sun.nio.ch.SocketChannelImpl.connect(Unknown Source)
    at java.nio.channels.SocketChannel.open(Unknown Source)
    at sun.nio.ch.PipeImpl$Initializer$LoopbackConnector.run(Unknown Source)
    ... 26 more


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- System Details --
Details:
    Minecraft Version: 1.12.2
    Operating System: Windows 10 (amd64) version 10.0
    Java Version: 1.8.0_171, Oracle Corporation
    Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
    Memory: 921750528 bytes (879 MB) / 1029177344 bytes (981 MB) up to 1029177344 bytes (981 MB)
    JVM Flags: 2 total; -Xms1024M -Xmx1024M
    IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
    CraftBukkit Information: 
   Running: 
   Failed to handle CraftCrashReport:
java.lang.NullPointerException
    at org.bukkit.Bukkit.getName(Bukkit.java:92)
    at org.bukkit.craftbukkit.v1_12_R1.CraftCrashReport.call(CraftCrashReport.java:21)
    at net.minecraft.server.v1_12_R1.CrashReportSystemDetails.a(SourceFile:78)
    at net.minecraft.server.v1_12_R1.CrashReport.h(CrashReport.java:128)
    at net.minecraft.server.v1_12_R1.CrashReport.<init>(CrashReport.java:35)
    at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:572)
    at java.lang.Thread.run(Unknown Source)

    Profiler Position: N/A (disabled)
    Is Modded: ~~ERROR~~ NullPointerException: null
    Type: Dedicated Server (map_server.txt)

 

@ThatsW0lfy
Can you post the console logs?