Problem/Bug I can't run my server

Whenever I try to run my server it says

---- Minecraft Crash Report ----
// I just don't know what went wrong

Time: 24/01/16 6:15 PM
Description: Exception in server tick loop

java.net.UnknownHostException: infestedrealms.mcpro.co
at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
at java.net.InetAddress$2.lookupAllHostAddr(Unknown Source)
at java.net.InetAddress.getAddressesFromNameService(Unknown Source)
at java.net.InetAddress.getAllByName0(Unknown Source)
at java.net.InetAddress.getAllByName(Unknown Source)
at java.net.InetAddress.getAllByName(Unknown Source)
at java.net.InetAddress.getByName(Unknown Source)
at ko.i(SourceFile:139)
at net.minecraft.server.MinecraftServer.run(SourceFile:421)
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 7 (x86) version 6.1
Java Version: 1.8.0_60, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
Memory: 475210176 bytes (453 MB) / 519110656 bytes (495 MB) up to 1037959168 bytes (989 MB)
JVM Flags: 2 total; -Xms512m -Xmx1024m
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)

Can someone tell me how I fix this?

 

@SirStego
Try running it without any settings like -Xms -Xmx
Just run "java -jar file.jar"