inativo Erro Exception in server tick loop

[AffonsoGames]

Olá pessoal preciso de uma pequena ajuda de vocês.

 

estou com esse erro no meu console que está me impossibilitando de abrir meu servidor como posso arrumar isso?

 

 

 

[02:32:34 ERROR]: Encountered an unexpected exception
java.lang.NoClassDefFoundError: org/json/simple/parser/JSONParser
        at kcauldron.updater.KVersionRetriever.<clinit>(KVersionRetriever.java:28) ~[KVersionRetriever.class:1.7.10-R0.1-SNAPSHOT]
        at cpw.mods.fml.common.FMLCommonHandler.handleServerStarted(FMLCommonHandler.java:290) ~[FMLCommonHandler.class:1.7.10-R0.1-SNAPSHOT]
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:633) [MinecraftServer.class:?]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_231]
Caused by: java.lang.ClassNotFoundException: org.json.simple.parser.JSONParser
        at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) ~[launchwrapper-1.12.jar:?]
        at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_231]
        at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_231]
        ... 4 more
Caused by: java.lang.ArrayIndexOutOfBoundsException
[02:32:34 ERROR]:       Cause of unexpected exception was
java.lang.ClassNotFoundException: org.json.simple.parser.JSONParser
        at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) ~[launchwrapper-1.12.jar:?]
        at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_231]
        at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_231]
        at kcauldron.updater.KVersionRetriever.<clinit>(KVersionRetriever.java:28) ~[KVersionRetriever.class:1.7.10-R0.1-SNAPSHOT]
        at cpw.mods.fml.common.FMLCommonHandler.handleServerStarted(FMLCommonHandler.java:290) ~[FMLCommonHandler.class:1.7.10-R0.1-SNAPSHOT]
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:633) [MinecraftServer.class:?]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_231]
Caused by: java.lang.ArrayIndexOutOfBoundsException
[02:32:34 ERROR]: This crash report has been saved to: C:\Users\kingnetwork0440\Desktop\Server 1.7.10\.\crash-reports\crash-2020-01-03_02.32.34-server.txt

 

 

CRASH REPORT:

 

Time: 03/01/20 02:34
Description: Exception in server tick loop

java.lang.NoClassDefFoundError: org/json/simple/parser/JSONParser
    at kcauldron.updater.KVersionRetriever.<clinit>(KVersionRetriever.java:28)
    at cpw.mods.fml.common.FMLCommonHandler.handleServerStarted(FMLCommonHandler.java:290)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:633)
    at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: org.json.simple.parser.JSONParser
    at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    ... 4 more
Caused by: java.lang.ArrayIndexOutOfBoundsException