HElp FOrge server

So I made a server on my pc but when I start the server it switches off.

Here is crash rep[ort:

---- Minecraft Crash Report ----

// Why is it breaking

Time: 10/28/16 11:43 PM

Description: Exception in server tick loop

java.lang.IllegalArgumentException: port out of range:255690

at java.net.InetSocketAddress.checkPort(Unknown Source)

at java.net.InetSocketAddress.<init>(Unknown Source)

at io.netty.bootstrap.AbstractBootstrap.localAddress(AbstractBootstrap.java:149)

at net.minecraft.network.NetworkSystem.func_151265_a(NetworkSystem.java:105)

at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:176)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:441)

at java.lang.Thread.run(Unknown Source)

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

---------------------------------------------------------------------------------------

-- System Details --

Details:

Minecraft Version: 1.8.9

Operating System: Windows 10 (amd64) version 10.0

Java Version: 1.8.0_92, Oracle Corporation

Java VM Version: Java HotSpot 64-Bit Server VM (mixed mode), Oracle Corporation

Memory: 519803240 bytes (495 MB) / 621805568 bytes (593 MB) up to 1897922560 bytes (1810 MB)

JVM Flags: 0 total;

IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0

FML: MCP 9.19 Powered by Forge 11.15.1.1902 3 mods loaded, 3 mods active

States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored

UCH mcp{9.19} [Minecraft Coder Pack] (minecraft.jar)

UCH FML{8.0.99.99} [Forge Mod Loader] (forge-1.8.9-11.15.1.1902-1.8.9-universal.jar)

UCH Forge{11.15.1.1902} [Minecraft Forge] (forge-1.8.9-11.15.1.1902-1.8.9-universal.jar)

Loaded coremods (and transformers):

Profiler Position: N/A (disabled)

Is Modded: Definitely; Server brand changed to 'fml,forge'

Type: Dedicated Server (map_server.txt)