My server keeps crashing? (Exception in server tick loop)

[Snharrison]

(Small disclaimer, I have no clue where to put this so bear with me please)

 

Okay so I set up a private server using the minecraft .jar thing right? I managed to get it to run one time before i edited the server properties but as soon as i finished editing it keeps on crashing.

Its not modded, (mostly because mods confuse me deeply)

this is the latest crash report:

 

---- Minecraft Crash Report ----

// Ooh. Shiny.

 

Time: 7/9/16 3:13 PM

Description: Exception in server tick loop

 

java.net.UnknownHostException: snharrisonserver.go: unknown error

at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)

at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928)

at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323)

at java.net.InetAddress.getAllByName0(InetAddress.java:1276)

at java.net.InetAddress.getAllByName(InetAddress.java:1192)

at java.net.InetAddress.getAllByName(InetAddress.java:1126)

at java.net.InetAddress.getByName(InetAddress.java:1076)

at ld.j(SourceFile:152)

at net.minecraft.server.MinecraftServer.run(SourceFile:428)

at java.lang.Thread.run(Thread.java:745)

 

 

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

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

 

-- System Details --

Details:

Minecraft Version: 1.10.2

Operating System: Mac OS X (x86_64) version 10.11.5

Java Version: 1.8.0_91, Oracle Corporation

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

Memory: 207185368 bytes (197 MB) / 246939648 bytes (235 MB) up to 954728448 bytes (910 MB)

JVM Flags: 0 total;

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

Profiler Position: N/A (disabled)

Is Modded: Unknown (can't tell)

Type: Dedicated Server (map_server.txt)[/font][/font]

 

I've searched around a bit and i cannot figure out how to fix the problem, and if my exact steps i used are needed, I used the tutorial suggested by the mojang website

(http://minecraft.gamepedia.com/Tutorials/Setting_up_a_server)

using the mac setup

 

thanks in advance for any suggestions